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136972296 = 233570459
BaseRepresentation
bin10000010101000…
…00100000001000
3100112201220200000
420022200200020
5240031103141
621331443000
73252150066
oct1012404010
9315656600
10136972296
117035434a
1239a56460
13224ba1c6
1414297036
15c0595b6
hex82a0808

136972296 has 48 divisors (see below), whose sum is σ = 384711600. Its totient is φ = 45656784.

The previous prime is 136972289. The next prime is 136972301. The reversal of 136972296 is 692279631.

It is a happy number.

It is a super-2 number, since 2×1369722962 = 37522819743023232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33286 + ... + 37173.

It is an arithmetic number, because the mean of its divisors is an integer number (8014825).

Almost surely, 2136972296 is an apocalyptic number.

It is an amenable number.

136972296 is an abundant number, since it is smaller than the sum of its proper divisors (247739304).

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

136972296 is an equidigital number, since it uses as much as digits as its factorization.

136972296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70480 (or 70464 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 136972296 is about 11703.5163946568. The cubic root of 136972296 is about 515.4789223223.

The spelling of 136972296 in words is "one hundred thirty-six million, nine hundred seventy-two thousand, two hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 972 1944 70459 140918 211377 281836 422754 563672 634131 845508 1268262 1691016 1902393 2536524 3804786 5073048 5707179 7609572 11414358 15219144 17121537 22828716 34243074 45657432 68486148 136972296