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8831067681 = 331432208319
BaseRepresentation
bin10000011100101111…
…10110011000100001
3211210110012201102210
420032113312120201
5121041223131211
64020144232333
7431561560002
oct101627663041
924713181383
108831067681
1138219a8947
12186560b6a9
13aa9782c47
145dabdd1a9
1536a45c9a6
hex20e5f6621

8831067681 has 16 divisors (see below), whose sum is σ = 12437258240. Its totient is φ = 5564961360.

The previous prime is 8831067677. The next prime is 8831067683. The reversal of 8831067681 is 1867601388.

It is not a de Polignac number, because 8831067681 - 22 = 8831067677 is a prime.

It is a super-2 number, since 2×88310676812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8831067681.

It is not an unprimeable number, because it can be changed into a prime (8831067683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1100161 + ... + 1108158.

It is an arithmetic number, because the mean of its divisors is an integer number (777328640).

Almost surely, 28831067681 is an apocalyptic number.

It is an amenable number.

8831067681 is a deficient number, since it is larger than the sum of its proper divisors (3606190559).

8831067681 is a wasteful number, since it uses less digits than its factorization.

8831067681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208396.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 8831067681 is about 93973.7605983713. The cubic root of 8831067681 is about 2066.9869644249.

The spelling of 8831067681 in words is "eight billion, eight hundred thirty-one million, sixty-seven thousand, six hundred eighty-one".

Divisors: 1 3 31 43 93 129 1333 3999 2208319 6624957 68457889 94957717 205373667 284873151 2943689227 8831067681