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136880620 = 2256844031
BaseRepresentation
bin10000010100010…
…10000111101100
3100112120020220121
420022022013230
5240020134440
621325454324
73251315602
oct1012120754
9315506817
10136880620
11702a1488
1239a113a4
1322487566
1414271872
15c03c34a
hex828a1ec

136880620 has 12 divisors (see below), whose sum is σ = 287449344. Its totient is φ = 54752240.

The previous prime is 136880587. The next prime is 136880633. The reversal of 136880620 is 26088631.

136880620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3421996 + ... + 3422035.

It is an arithmetic number, because the mean of its divisors is an integer number (23954112).

Almost surely, 2136880620 is an apocalyptic number.

136880620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136880620 is an abundant number, since it is smaller than the sum of its proper divisors (150568724).

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

136880620 is a wasteful number, since it uses less digits than its factorization.

136880620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844040 (or 6844038 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 136880620 is about 11699.5991384321. The cubic root of 136880620 is about 515.3638927528.

The spelling of 136880620 in words is "one hundred thirty-six million, eight hundred eighty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 6844031 13688062 27376124 34220155 68440310 136880620