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139752954 = 232111741519
BaseRepresentation
bin10000101010001…
…11010111111010
3100201222012000100
420111013113322
5241234043304
621511220230
73314611005
oct1025072772
9321865010
10139752954
1171983510
123a977676
1322c51a73
14147bc53c
15c408439
hex85475fa

139752954 has 48 divisors (see below), whose sum is σ = 349764480. Its totient is φ = 39857280.

The previous prime is 139752953. The next prime is 139752973. The reversal of 139752954 is 459257931.

It is a happy number.

It is a super-2 number, since 2×1397529542 = 39061776303452232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139752953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17394 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (7286760).

Almost surely, 2139752954 is an apocalyptic number.

139752954 is an abundant number, since it is smaller than the sum of its proper divisors (210011526).

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

139752954 is a wasteful number, since it uses less digits than its factorization.

139752954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41555 (or 41552 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 139752954 is about 11821.7153577643. The cubic root of 139752954 is about 518.9438053807.

The spelling of 139752954 in words is "one hundred thirty-nine million, seven hundred fifty-two thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 9 11 17 18 22 33 34 51 66 99 102 153 187 198 306 374 561 1122 1683 3366 41519 83038 124557 249114 373671 456709 705823 747342 913418 1370127 1411646 2117469 2740254 4110381 4234938 6352407 7764053 8220762 12704814 15528106 23292159 46584318 69876477 139752954