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125272736 = 2531293431
BaseRepresentation
bin1110111011110…
…00001010100000
322201201111212222
413131320022200
5224032211421
620233010212
73050541431
oct735701240
9281644788
10125272736
1164793296
1235b53968
131cc51ba4
14128cd488
15aee7cab
hex77782a0

125272736 has 48 divisors (see below), whose sum is σ = 256048128. Its totient is φ = 60268800.

The previous prime is 125272733. The next prime is 125272739. The reversal of 125272736 is 637272521.

It is an interprime number because it is at equal distance from previous prime (125272733) and next prime (125272739).

It is a junction number, because it is equal to n+sod(n) for n = 125272696 and 125272705.

It is not an unprimeable number, because it can be changed into a prime (125272733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290441 + ... + 290871.

It is an arithmetic number, because the mean of its divisors is an integer number (5334336).

Almost surely, 2125272736 is an apocalyptic number.

125272736 is a gapful number since it is divisible by the number (16) 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 125272736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128024064).

125272736 is an abundant number, since it is smaller than the sum of its proper divisors (130775392).

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

125272736 is a wasteful number, since it uses less digits than its factorization.

125272736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 757 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 125272736 is about 11192.5303662755. The cubic root of 125272736 is about 500.3633838404.

The spelling of 125272736 in words is "one hundred twenty-five million, two hundred seventy-two thousand, seven hundred thirty-six".

Divisors: 1 2 4 8 16 31 32 62 124 248 293 431 496 586 862 992 1172 1724 2344 3448 4688 6896 9083 9376 13361 13792 18166 26722 36332 53444 72664 106888 126283 145328 213776 252566 290656 427552 505132 1010264 2020528 3914773 4041056 7829546 15659092 31318184 62636368 125272736