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80472615056 = 2430809163249
BaseRepresentation
bin100101011110010001…
…0101010100010010000
321200201021102101222022
41022330202222202100
52304301442140211
6100545115231012
75546120641031
oct1127442524220
9250637371868
1080472615056
1131145769839
121371a148468
13778601c2b2
143c75842a88
15215ec27bdb
hex12bc8aa890

80472615056 has 20 divisors (see below), whose sum is σ = 155921707500. Its totient is φ = 40234755072.

The previous prime is 80472615019. The next prime is 80472615089. The reversal of 80472615056 is 65051627408.

It can be written as a sum of positive squares in 2 ways, for example, as 71406528400 + 9066086656 = 267220^2 + 95216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80472614998 and 80472615016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411320 + ... + 574568.

It is an arithmetic number, because the mean of its divisors is an integer number (7796085375).

Almost surely, 280472615056 is an apocalyptic number.

It is an amenable number.

80472615056 is a deficient number, since it is larger than the sum of its proper divisors (75449092444).

80472615056 is a wasteful number, since it uses less digits than its factorization.

80472615056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194066 (or 194060 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 80472615056 in words is "eighty billion, four hundred seventy-two million, six hundred fifteen thousand, fifty-six".

Divisors: 1 2 4 8 16 30809 61618 123236 163249 246472 326498 492944 652996 1305992 2611984 5029538441 10059076882 20118153764 40236307528 80472615056