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125393832 = 23382389
BaseRepresentation
bin1110111100101…
…01101110101000
322201221200000000
413132111232220
5224100100312
620235343000
73051554454
oct736255650
9281850000
10125393832
1164866273
1235bb1a60
131cc95045
1412921664
15b01dadc
hex7795ba8

125393832 has 72 divisors (see below), whose sum is σ = 352799850. Its totient is φ = 41780448.

The previous prime is 125393803. The next prime is 125393839. The reversal of 125393832 is 238393521.

It can be written as a sum of positive squares in only one way, i.e., 117809316 + 7584516 = 10854^2 + 2754^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1253938322 = 31447226207288448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (125393839) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51294 + ... + 53682.

Almost surely, 2125393832 is an apocalyptic number.

125393832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125393832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176399925).

125393832 is an abundant number, since it is smaller than the sum of its proper divisors (227406018).

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

125393832 is an frugal number, since it uses more digits than its factorization.

125393832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2394 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 125393832 is about 11197.9387388930. The cubic root of 125393832 is about 500.5245588170.

The spelling of 125393832 in words is "one hundred twenty-five million, three hundred ninety-three thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 729 972 1458 1944 2187 2389 2916 4374 4778 5832 6561 7167 8748 9556 13122 14334 17496 19112 21501 26244 28668 43002 52488 57336 64503 86004 129006 172008 193509 258012 387018 516024 580527 774036 1161054 1548072 1741581 2322108 3483162 4644216 5224743 6966324 10449486 13932648 15674229 20898972 31348458 41797944 62696916 125393832