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2475168138 = 233231992889
BaseRepresentation
bin1001001110001000…
…0001000110001010
320101111110120101000
42103202001012022
520032120340023
61045335235430
7115223403432
oct22342010612
96344416330
102475168138
111060193503
12590b18b76
13305a46941
14196a292c2
15e7473243
hex9388118a

2475168138 has 32 divisors (see below), whose sum is σ = 5739523200. Its totient is φ = 789183648.

The previous prime is 2475168121. The next prime is 2475168167. The reversal of 2475168138 is 8318615742.

2475168138 is a `hidden beast` number, since 2 + 475 + 168 + 13 + 8 = 666.

It is a super-2 number, since 2×24751681382 = 12252914622740774088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2475168093 and 2475168102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 995203 + ... + 997686.

It is an arithmetic number, because the mean of its divisors is an integer number (179360100).

Almost surely, 22475168138 is an apocalyptic number.

2475168138 is an abundant number, since it is smaller than the sum of its proper divisors (3264355062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2475168138 is a wasteful number, since it uses less digits than its factorization.

2475168138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992923 (or 1992917 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 2475168138 is about 49751.0616771140. The cubic root of 2475168138 is about 1352.7002448025.

The spelling of 2475168138 in words is "two billion, four hundred seventy-five million, one hundred sixty-eight thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 138 207 414 621 1242 1992889 3985778 5978667 11957334 17936001 35872002 45836447 53808003 91672894 107616006 137509341 275018682 412528023 825056046 1237584069 2475168138