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115123166905 = 5712271428593
BaseRepresentation
bin110101100110111100…
…0000001111010111001
3102000011010112211011111
41223031320001322321
53341233012320110
6124515321000321
711213600526055
oct1531570017271
9360133484144
10115123166905
114490703224a
121a38a6230a1
13ab18a21006
145801786c65
152edbc7ce8a
hex1acde01eb9

115123166905 has 16 divisors (see below), whose sum is σ = 140710794624. Its totient is φ = 90401301760.

The previous prime is 115123166861. The next prime is 115123166947. The reversal of 115123166905 is 509661321511.

It is not a de Polignac number, because 115123166905 - 29 = 115123166393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633712 + ... + 794881.

It is an arithmetic number, because the mean of its divisors is an integer number (8794424664).

Almost surely, 2115123166905 is an apocalyptic number.

It is an amenable number.

115123166905 is a deficient number, since it is larger than the sum of its proper divisors (25587627719).

115123166905 is a wasteful number, since it uses less digits than its factorization.

115123166905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428896.

The product of its (nonzero) digits is 48600, while the sum is 40.

The spelling of 115123166905 in words is "one hundred fifteen billion, one hundred twenty-three million, one hundred sixty-six thousand, nine hundred five".

Divisors: 1 5 71 227 355 1135 16117 80585 1428593 7142965 101430103 324290611 507150515 1621453055 23024633381 115123166905