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8991045074 = 2111090937463
BaseRepresentation
bin10000101111110100…
…00111010111010010
3212012121020102011102
420113322013113102
5121403201420244
64044101144402
7435543423254
oct102772072722
925177212142
108991045074
1138a4235270
1218ab0bb102
13b0396631b
14614163cd4
1537950d54e
hex217e875d2

8991045074 has 16 divisors (see below), whose sum is σ = 14714360640. Its totient is φ = 4086354960.

The previous prime is 8991045067. The next prime is 8991045097. The reversal of 8991045074 is 4705401998.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221267 + ... + 258729.

It is an arithmetic number, because the mean of its divisors is an integer number (919647540).

Almost surely, 28991045074 is an apocalyptic number.

8991045074 is a deficient number, since it is larger than the sum of its proper divisors (5723315566).

8991045074 is a wasteful number, since it uses less digits than its factorization.

8991045074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48385.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 8991045074 is about 94821.1214550851. The cubic root of 8991045074 is about 2079.3937053471.

The spelling of 8991045074 in words is "eight billion, nine hundred ninety-one million, forty-five thousand, seventy-four".

Divisors: 1 2 11 22 10909 21818 37463 74926 119999 239998 412093 824186 408683867 817367734 4495522537 8991045074