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30561462475020 = 22325792149188641
BaseRepresentation
bin1101111001011101001010…
…00111010101100100001100
311000012122110212101201001100
412330232211013111210030
513001204333343200040
6144555424140343100
76302664346602051
oct674564507254414
9130178425351040
1030561462475020
119813052916754
123517023b44a90
131408c19ccb329
1477927b399028
1537ee91745b30
hex1bcba51d590c

30561462475020 has 72 divisors (see below), whose sum is σ = 93876559882560. Its totient is φ = 8046562268160.

The previous prime is 30561462475001. The next prime is 30561462475051. The reversal of 30561462475020 is 2057426416503.

30561462475020 is a `hidden beast` number, since 3 + 0 + 5 + 6 + 14 + 624 + 7 + 5 + 0 + 2 + 0 = 666.

It is a super-2 number, since 2×305614624750202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1074580101 + ... + 1074608540.

It is an arithmetic number, because the mean of its divisors is an integer number (1303841109480).

Almost surely, 230561462475020 is an apocalyptic number.

30561462475020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30561462475020 is an abundant number, since it is smaller than the sum of its proper divisors (63315097407540).

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

30561462475020 is a wasteful number, since it uses less digits than its factorization.

30561462475020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149188735 (or 2149188730 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 30561462475020 in words is "thirty trillion, five hundred sixty-one billion, four hundred sixty-two million, four hundred seventy-five thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 79 90 158 180 237 316 395 474 711 790 948 1185 1422 1580 2370 2844 3555 4740 7110 14220 2149188641 4298377282 6447565923 8596754564 10745943205 12895131846 19342697769 21491886410 25790263692 32237829615 38685395538 42983772820 64475659230 77370791076 96713488845 128951318460 169785902639 193426977690 339571805278 386853955380 509357707917 679143610556 848929513195 1018715415834 1528073123751 1697859026390 2037430831668 2546788539585 3056146247502 3395718052780 5093577079170 6112292495004 7640365618755 10187154158340 15280731237510 30561462475020