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12490625 = 557571
BaseRepresentation
bin101111101001…
…011110000001
3212111120220202
4233221132001
511144200000
61123414545
7211111550
oct57513601
925446822
1012490625
117061434
124224455
132784404
141931d97
15116add5
hexbe9781

12490625 has 24 divisors (see below), whose sum is σ = 17873856. Its totient is φ = 8550000.

The previous prime is 12490607. The next prime is 12490627. The reversal of 12490625 is 52609421.

It is a happy number.

It is not a de Polignac number, because 12490625 - 28 = 12490369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12490627) 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 23 ways as a sum of consecutive naturals, for example, 21590 + ... + 22160.

It is an arithmetic number, because the mean of its divisors is an integer number (744744).

Almost surely, 212490625 is an apocalyptic number.

It is an amenable number.

12490625 is a deficient number, since it is larger than the sum of its proper divisors (5383231).

12490625 is an frugal number, since it uses more digits than its factorization.

12490625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12490625 is about 3534.2078320325. The cubic root of 12490625 is about 232.0214073092.

The spelling of 12490625 in words is "twelve million, four hundred ninety thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 571 625 875 2855 3125 3997 4375 14275 19985 21875 71375 99925 356875 499625 1784375 2498125 12490625