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8113968885 = 351149175569
BaseRepresentation
bin1111000111010000…
…10101011011110101
3202221110212022211010
413203220111123311
5113104134001020
63421050302433
7405033411651
oct74350253365
922843768733
108113968885
11349413aa10
1216a5427a19
139c4037b29
1456d893a61
1532750dde0
hex1e3a156f5

8113968885 has 16 divisors (see below), whose sum is σ = 14162564160. Its totient is φ = 3934045440.

The previous prime is 8113968859. The next prime is 8113968917. The reversal of 8113968885 is 5888693118.

It is a happy number.

It is not a de Polignac number, because 8113968885 - 213 = 8113960693 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24587620 + ... + 24587949.

It is an arithmetic number, because the mean of its divisors is an integer number (885160260).

Almost surely, 28113968885 is an apocalyptic number.

It is an amenable number.

8113968885 is a deficient number, since it is larger than the sum of its proper divisors (6048595275).

8113968885 is a wasteful number, since it uses less digits than its factorization.

8113968885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49175588.

The product of its digits is 3317760, while the sum is 57.

The square root of 8113968885 is about 90077.5714870244. The cubic root of 8113968885 is about 2009.4526603048.

The spelling of 8113968885 in words is "eight billion, one hundred thirteen million, nine hundred sixty-eight thousand, eight hundred eighty-five".

Divisors: 1 3 5 11 15 33 55 165 49175569 147526707 245877845 540931259 737633535 1622793777 2704656295 8113968885