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29157494275 = 5271312816481
BaseRepresentation
bin11011001001111011…
…000000111000000011
32210021000222011210101
4123021323000320003
5434203304304100
621221134143231
72051356416640
oct331173007003
983230864711
1029157494275
1111402711008
125798951b17
13299897bcc0
1415a85b6dc7
15b59ba786a
hex6c9ec0e03

29157494275 has 24 divisors (see below), whose sum is σ = 44498825504. Its totient is φ = 18455731200.

The previous prime is 29157494251. The next prime is 29157494281. The reversal of 29157494275 is 57249475192.

It is a de Polignac number, because none of the positive numbers 2k-29157494275 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6405966 + ... + 6410515.

Almost surely, 229157494275 is an apocalyptic number.

29157494275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

29157494275 is a deficient number, since it is larger than the sum of its proper divisors (15341331229).

29157494275 is a wasteful number, since it uses less digits than its factorization.

29157494275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12816511 (or 12816506 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The spelling of 29157494275 in words is "twenty-nine billion, one hundred fifty-seven million, four hundred ninety-four thousand, two hundred seventy-five".

Divisors: 1 5 7 13 25 35 65 91 175 325 455 2275 12816481 64082405 89715367 166614253 320412025 448576835 833071265 1166299771 2242884175 4165356325 5831498855 29157494275