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125740625 = 5540237
BaseRepresentation
bin1110111111010…
…10011001010001
322202121021201012
413133222121101
5224142200000
620251020305
73054530513
oct737523121
9282537635
10125740625
1164a8287a
123613a695
1320086b4a
14129b1bb3
15b08b735
hex77ea651

125740625 has 12 divisors (see below), whose sum is σ = 157169628. Its totient is φ = 100590000.

The previous prime is 125740621. The next prime is 125740633. The reversal of 125740625 is 526047521.

It can be written as a sum of positive squares in 6 ways, for example, as 89548369 + 36192256 = 9463^2 + 6016^2 .

It is not a de Polignac number, because 125740625 - 22 = 125740621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125740591 and 125740600.

It is not an unprimeable number, because it can be changed into a prime (125740621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16994 + ... + 23243.

It is an arithmetic number, because the mean of its divisors is an integer number (13097469).

Almost surely, 2125740625 is an apocalyptic number.

It is an amenable number.

125740625 is a deficient number, since it is larger than the sum of its proper divisors (31429003).

125740625 is an frugal number, since it uses more digits than its factorization.

125740625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40262 (or 40242 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 125740625 is about 11213.4127276222. The cubic root of 125740625 is about 500.9855560820.

The spelling of 125740625 in words is "one hundred twenty-five million, seven hundred forty thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 3125 40237 201185 1005925 5029625 25148125 125740625