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138037254 = 2315121009
BaseRepresentation
bin10000011101001…
…00100000000110
3100121202000111220
420032210200012
5240314143004
621410341210
73264203655
oct1016444006
9317660456
10138037254
1170a11483
123a28a806
13227a0b64
141449319c
15c1b9dd9
hex83a4806

138037254 has 24 divisors (see below), whose sum is σ = 278190360. Its totient is φ = 45662400.

The previous prime is 138037247. The next prime is 138037271. The reversal of 138037254 is 452730831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136302 + ... + 137310.

It is an arithmetic number, because the mean of its divisors is an integer number (11591265).

Almost surely, 2138037254 is an apocalyptic number.

138037254 is an abundant number, since it is smaller than the sum of its proper divisors (140153106).

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

138037254 is a wasteful number, since it uses less digits than its factorization.

138037254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 138037254 is about 11748.9256530119. The cubic root of 138037254 is about 516.8114224065.

The spelling of 138037254 in words is "one hundred thirty-eight million, thirty-seven thousand, two hundred fifty-four".

Divisors: 1 2 3 6 151 302 453 906 1009 2018 3027 6054 22801 45602 68403 136806 152359 304718 457077 914154 23006209 46012418 69018627 138037254