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205112785052952 = 23347373121230209
BaseRepresentation
bin101110101000110010001010…
…101100010010010100011000
3222220020120221122201111210000
4232220302022230102110120
5203341031440433143302
62004123302421053000
761126624011233220
oct5650621254222430
9886216848644700
10205112785052952
115a39a930979477
121b008294857160
138a5b08b845a6a
143891724403080
1518aa6c313e31c
hexba8c8ab12518

205112785052952 has 160 divisors (see below), whose sum is σ = 658338230800800. Its totient is φ = 58446538039296.

The previous prime is 205112785052839. The next prime is 205112785052953. The reversal of 205112785052952 is 259250587211502.

205112785052952 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 12 + 7 + 8 + 50 + 529 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205112785052953) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58923177 + ... + 62307032.

It is an arithmetic number, because the mean of its divisors is an integer number (4114613942505).

Almost surely, 2205112785052952 is an apocalyptic number.

It is an amenable number.

205112785052952 is an abundant number, since it is smaller than the sum of its proper divisors (453225445747848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205112785052952 is a wasteful number, since it uses less digits than its factorization.

205112785052952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121230607 (or 121230594 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 54.

The spelling of 205112785052952 in words is "two hundred five trillion, one hundred twelve billion, seven hundred eighty-five million, fifty-two thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 252 324 373 378 504 567 648 746 756 1119 1134 1492 1512 2238 2268 2611 2984 3357 4476 4536 5222 6714 7833 8952 10071 10444 13428 15666 20142 20888 23499 26856 30213 31332 40284 46998 60426 62664 70497 80568 93996 120852 140994 187992 211491 241704 281988 422982 563976 845964 1691928 121230209 242460418 363690627 484920836 727381254 848611463 969841672 1091071881 1454762508 1697222926 2182143762 2545834389 2909525016 3273215643 3394445852 4364287524 5091668778 6546431286 6788891704 7637503167 8728575048 9819646929 10183337556 13092862572 15275006334 19639293858 20366675112 22912509501 26185725144 30550012668 39278587716 45218867957 45825019002 61100025336 68737528503 78557175432 90437735914 91650038004 135656603871 137475057006 180875471828 183300076008 271313207742 274950114012 316532075699 361750943656 406969811613 542626415484 549900228024 633064151398 813939623226 949596227097 1085252830968 1220909434839 1266128302796 1627879246452 1899192454194 2441818869678 2532256605592 2848788681291 3255758492904 3662728304517 3798384908388 4883637739356 5697577362582 7325456609034 7596769816776 8546366043873 9767275478712 11395154725164 14650913218068 17092732087746 22790309450328 25639098131619 29301826436136 34185464175492 51278196263238 68370928350984 102556392526476 205112785052952