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26431162040 = 235660779051
BaseRepresentation
bin11000100111011010…
…111000011010111000
32112020000220011001102
4120213122320122320
5413112334141130
620050423310532
71623663112313
oct304732703270
975200804042
1026431162040
111023377a278
1251578ab448
132652ba5b6a
1413ca48b97a
15a4a670645
hex6276b86b8

26431162040 has 16 divisors (see below), whose sum is σ = 59470114680. Its totient is φ = 10572464800.

The previous prime is 26431162033. The next prime is 26431162091. The reversal of 26431162040 is 4026113462.

It is a junction number, because it is equal to n+sod(n) for n = 26431161994 and 26431162012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330389486 + ... + 330389565.

Almost surely, 226431162040 is an apocalyptic number.

26431162040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26431162040 is an abundant number, since it is smaller than the sum of its proper divisors (33038952640).

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

26431162040 is a wasteful number, since it uses less digits than its factorization.

26431162040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660779062 (or 660779058 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 26431162040 in words is "twenty-six billion, four hundred thirty-one million, one hundred sixty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 660779051 1321558102 2643116204 3303895255 5286232408 6607790510 13215581020 26431162040