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71382855168 = 293241377831
BaseRepresentation
bin100001001111010111…
…1111110111000000000
320211020210102202112200
41002132233332320000
52132143002331133
652443130153200
75104635154242
oct1023657767000
9224223382480
1071382855168
1128300840689
1211a01b82800
136967aa2451
143652544092
151ccbc1a913
hex109ebfee00

71382855168 has 120 divisors (see below), whose sum is σ = 211041086256. Its totient is φ = 23213875200.

The previous prime is 71382855149. The next prime is 71382855169. The reversal of 71382855168 is 86155828317.

71382855168 is a `hidden beast` number, since 7 + 1 + 3 + 8 + 28 + 551 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71382855169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13 + ... + 377843.

Almost surely, 271382855168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71382855168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105520543128).

71382855168 is an abundant number, since it is smaller than the sum of its proper divisors (139658231088).

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

71382855168 is a wasteful number, since it uses less digits than its factorization.

71382855168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377896 (or 377877 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 71382855168 in words is "seventy-one billion, three hundred eighty-two million, eight hundred fifty-five thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 41 48 64 72 82 96 123 128 144 164 192 246 256 288 328 369 384 492 512 576 656 738 768 984 1152 1312 1476 1536 1968 2304 2624 2952 3936 4608 5248 5904 7872 10496 11808 15744 20992 23616 31488 47232 62976 94464 188928 377831 755662 1133493 1511324 2266986 3022648 3400479 4533972 6045296 6800958 9067944 12090592 13601916 15491071 18135888 24181184 27203832 30982142 36271776 46473213 48362368 54407664 61964284 72543552 92946426 96724736 108815328 123928568 139419639 145087104 185892852 193449472 217630656 247857136 278839278 290174208 371785704 435261312 495714272 557678556 580348416 743571408 870522624 991428544 1115357112 1487142816 1741045248 1982857088 2230714224 2974285632 3965714176 4461428448 5948571264 7931428352 8922856896 11897142528 17845713792 23794285056 35691427584 71382855168