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125706028 = 22743131797
BaseRepresentation
bin1110111111000…
…01111100101100
322202112112020211
413133201330230
5224140043103
620250152204
73054324610
oct737417454
9282475224
10125706028
1164a59888
1236122664
1320074186
14129a3340
15b08136d
hex77e1f2c

125706028 has 48 divisors (see below), whose sum is σ = 259547904. Its totient is φ = 52153920.

The previous prime is 125706019. The next prime is 125706101. The reversal of 125706028 is 820607521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157326 + ... + 158122.

It is an arithmetic number, because the mean of its divisors is an integer number (5407248).

Almost surely, 2125706028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125706028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129773952).

125706028 is an abundant number, since it is smaller than the sum of its proper divisors (133841876).

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

125706028 is a wasteful number, since it uses less digits than its factorization.

125706028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 125706028 is about 11211.8699600022. The cubic root of 125706028 is about 500.9396038498.

The spelling of 125706028 in words is "one hundred twenty-five million, seven hundred six thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 43 86 131 172 262 301 524 602 797 917 1204 1594 1834 3188 3668 5579 5633 11158 11266 22316 22532 34271 39431 68542 78862 104407 137084 157724 208814 239897 417628 479794 730849 959588 1461698 2923396 4489501 8979002 17958004 31426507 62853014 125706028