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125925904 = 2413605413
BaseRepresentation
bin1111000000101…
…11101000010000
322202221200212101
413200113220100
5224214112104
620255010144
73056231626
oct740275020
9282850771
10125925904
1165099aa5
1236209954
1320120290
1412a1d516
15b0c65a4
hex7817a10

125925904 has 20 divisors (see below), whose sum is σ = 262749676. Its totient is φ = 58119552.

The previous prime is 125925889. The next prime is 125925907. The reversal of 125925904 is 409529521.

125925904 = T4395 + T4396 + ... + T4407.

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 118374400 = 2748^2 + 10880^2 .

It is not an unprimeable number, because it can be changed into a prime (125925907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302499 + ... + 302914.

Almost surely, 2125925904 is an apocalyptic number.

It is an amenable number.

125925904 is an abundant number, since it is smaller than the sum of its proper divisors (136823772).

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

125925904 is a wasteful number, since it uses less digits than its factorization.

125925904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605434 (or 605428 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 125925904 is about 11221.6711767900. The cubic root of 125925904 is about 501.2315029772.

It can be divided in two parts, 12592 and 5904, that added together give a square (18496 = 1362).

The spelling of 125925904 in words is "one hundred twenty-five million, nine hundred twenty-five thousand, nine hundred four".

Divisors: 1 2 4 8 13 16 26 52 104 208 605413 1210826 2421652 4843304 7870369 9686608 15740738 31481476 62962952 125925904