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138350046 = 23174728859
BaseRepresentation
bin10000011111100…
…00110111011110
3100122022220120210
420033300313132
5240404200141
621421153250
73266645622
oct1017606736
9318286523
10138350046
117110548a
123a3bb826
1322880343
1414535182
15c22c916
hex83f0dde

138350046 has 32 divisors (see below), whose sum is σ = 299220480. Its totient is φ = 42478976.

The previous prime is 138350027. The next prime is 138350053. The reversal of 138350046 is 640053831.

It is a junction number, because it is equal to n+sod(n) for n = 138349995 and 138350022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9636 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (9350640).

Almost surely, 2138350046 is an apocalyptic number.

138350046 is an abundant number, since it is smaller than the sum of its proper divisors (160870434).

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

138350046 is a wasteful number, since it uses less digits than its factorization.

138350046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28928.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 138350046 is about 11762.2296355751. The cubic root of 138350046 is about 517.2014922955.

The spelling of 138350046 in words is "one hundred thirty-eight million, three hundred fifty thousand, forty-six".

Divisors: 1 2 3 6 17 34 47 51 94 102 141 282 799 1598 2397 4794 28859 57718 86577 173154 490603 981206 1356373 1471809 2712746 2943618 4069119 8138238 23058341 46116682 69175023 138350046