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10728625 = 5385829
BaseRepresentation
bin101000111011…
…010010110001
3202012001220111
4220323102301
510221304000
61021541321
7160122535
oct50732261
922161814
1010728625
116068636
123714841
1322b83cb
1415d3bc5
15e1dcba
hexa3b4b1

10728625 has 8 divisors (see below), whose sum is σ = 13389480. Its totient is φ = 8582800.

The previous prime is 10728623. The next prime is 10728647. The reversal of 10728625 is 52682701.

10728625 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2702736 + 8025889 = 1644^2 + 2833^2 .

It is not a de Polignac number, because 10728625 - 21 = 10728623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10728623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42790 + ... + 43039.

It is an arithmetic number, because the mean of its divisors is an integer number (1673685).

Almost surely, 210728625 is an apocalyptic number.

It is an amenable number.

10728625 is a deficient number, since it is larger than the sum of its proper divisors (2660855).

10728625 is an frugal number, since it uses more digits than its factorization.

10728625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85844 (or 85834 counting only the distinct ones).

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

The square root of 10728625 is about 3275.4579832445. The cubic root of 10728625 is about 220.5538729917.

The spelling of 10728625 in words is "ten million, seven hundred twenty-eight thousand, six hundred twenty-five".

Divisors: 1 5 25 125 85829 429145 2145725 10728625