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2638080008 = 231181279221
BaseRepresentation
bin1001110100111101…
…1110100000001000
320210212000100102222
42131033132200020
520400322030013
61113435113212
7122242211234
oct23517364010
96725010388
102638080008
111134144613
126175a2808
133307168b5
141b05155c4
15106903508
hex9d3de808

2638080008 has 16 divisors (see below), whose sum is σ = 4950606060. Its totient is φ = 1317918400.

The previous prime is 2638080007. The next prime is 2638080017. The reversal of 2638080008 is 8000808362.

It can be written as a sum of positive squares in 2 ways, for example, as 2638055044 + 24964 = 51362^2 + 158^2 .

It is a super-2 number, since 2×26380800082 = 13918932257218560128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2638080008.

It is not an unprimeable number, because it can be changed into a prime (2638080007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130163 + ... + 149058.

Almost surely, 22638080008 is an apocalyptic number.

It is an amenable number.

2638080008 is a deficient number, since it is larger than the sum of its proper divisors (2312526052).

2638080008 is a wasteful number, since it uses less digits than its factorization.

2638080008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280408 (or 280404 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 2638080008 is about 51362.2430195567. The cubic root of 2638080008 is about 1381.7495153184.

The spelling of 2638080008 in words is "two billion, six hundred thirty-eight million, eighty thousand, eight".

Divisors: 1 2 4 8 1181 2362 4724 9448 279221 558442 1116884 2233768 329760001 659520002 1319040004 2638080008