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136815340 = 22567102101
BaseRepresentation
bin10000010011110…
…10001011101100
3100112102221100211
420021322023230
5240011042330
621324232204
73250624354
oct1011721354
9315387324
10136815340
1170257432
123999b664
132246392c
1414255b64
15c027d2a
hex827a2ec

136815340 has 24 divisors (see below), whose sum is σ = 291603312. Its totient is φ = 53908800.

The previous prime is 136815323. The next prime is 136815361. The reversal of 136815340 is 43518631.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49711 + ... + 52390.

It is an arithmetic number, because the mean of its divisors is an integer number (12150138).

Almost surely, 2136815340 is an apocalyptic number.

136815340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136815340 is an abundant number, since it is smaller than the sum of its proper divisors (154787972).

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

136815340 is a wasteful number, since it uses less digits than its factorization.

136815340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102177 (or 102175 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 136815340 is about 11696.8089665515. The cubic root of 136815340 is about 515.2819519965.

The spelling of 136815340 in words is "one hundred thirty-six million, eight hundred fifteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 102101 204202 408404 510505 1021010 2042020 6840767 13681534 27363068 34203835 68407670 136815340