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136813984 = 2519225023
BaseRepresentation
bin10000010011110…
…01110110100000
3100112102212111121
420021321312200
5240011021414
621324222024
73250620406
oct1011716640
9315385447
10136813984
117025640a
123999a914
1322463128
1414255476
15c027724
hex8279da0

136813984 has 24 divisors (see below), whose sum is σ = 283530240. Its totient is φ = 64806336.

The previous prime is 136813969. The next prime is 136813987. The reversal of 136813984 is 489318631.

It is a self number, because there is not a number n which added to its sum of digits gives 136813984.

It is not an unprimeable number, because it can be changed into a prime (136813987) 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, 111904 + ... + 113119.

It is an arithmetic number, because the mean of its divisors is an integer number (11813760).

Almost surely, 2136813984 is an apocalyptic number.

It is an amenable number.

136813984 is an abundant number, since it is smaller than the sum of its proper divisors (146716256).

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

136813984 is a wasteful number, since it uses less digits than its factorization.

136813984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225052 (or 225044 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 136813984 is about 11696.7510018808. The cubic root of 136813984 is about 515.2802496420.

The spelling of 136813984 in words is "one hundred thirty-six million, eight hundred thirteen thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 225023 450046 900092 1800184 3600368 4275437 7200736 8550874 17101748 34203496 68406992 136813984