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138913150 = 2522778263
BaseRepresentation
bin10000100011110…
…10010101111110
3100200101112000111
420101322111332
5241030210100
621441220234
73304512415
oct1021722576
9320345014
10138913150
117145a562
123a63167a
1322a1973c
141464047c
15c2de6ba
hex847a57e

138913150 has 12 divisors (see below), whose sum is σ = 258378552. Its totient is φ = 55565240.

The previous prime is 138913141. The next prime is 138913163. The reversal of 138913150 is 51319831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1389082 + ... + 1389181.

It is an arithmetic number, because the mean of its divisors is an integer number (21531546).

Almost surely, 2138913150 is an apocalyptic number.

138913150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138913150 is a deficient number, since it is larger than the sum of its proper divisors (119465402).

138913150 is a wasteful number, since it uses less digits than its factorization.

138913150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778275 (or 2778270 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 138913150 is about 11786.1422866008. The cubic root of 138913150 is about 517.9022365353.

The spelling of 138913150 in words is "one hundred thirty-eight million, nine hundred thirteen thousand, one hundred fifty".

Divisors: 1 2 5 10 25 50 2778263 5556526 13891315 27782630 69456575 138913150