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125285028 = 22311949129
BaseRepresentation
bin1110111011110…
…11001010100100
322201202010202020
413131323022210
5224033110103
620233143140
73050622321
oct735731244
9281663666
10125285028
11647a1550
1235b5aab0
131cc5766b
14128d3b48
15aeeb753
hex777b2a4

125285028 has 24 divisors (see below), whose sum is σ = 318907680. Its totient is φ = 37965120.

The previous prime is 125285003. The next prime is 125285059. The reversal of 125285028 is 820582521.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 125285028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474433 + ... + 474696.

It is an arithmetic number, because the mean of its divisors is an integer number (13287820).

Almost surely, 2125285028 is an apocalyptic number.

It is an amenable number.

125285028 is an abundant number, since it is smaller than the sum of its proper divisors (193622652).

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

125285028 is a wasteful number, since it uses less digits than its factorization.

125285028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949147 (or 949145 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 125285028 is about 11193.0794690291. The cubic root of 125285028 is about 500.3797488419.

The spelling of 125285028 in words is "one hundred twenty-five million, two hundred eighty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 949129 1898258 2847387 3796516 5694774 10440419 11389548 20880838 31321257 41761676 62642514 125285028