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10309497125 = 5382475977
BaseRepresentation
bin10011001100111111…
…00111000100100101
3222121111010201100212
421212133213010211
5132103212402000
64423000145205
7513323164634
oct114637470445
928544121325
1010309497125
114410495864
121bb8768205
13c83b61c75
146db2c951b
15405145c35
hex2667e7125

10309497125 has 8 divisors (see below), whose sum is σ = 12866252568. Its totient is φ = 8247597600.

The previous prime is 10309497067. The next prime is 10309497169. The reversal of 10309497125 is 52179490301.

It can be written as a sum of positive squares in 4 ways, for example, as 2458473889 + 7851023236 = 49583^2 + 88606^2 .

It is not a de Polignac number, because 10309497125 - 228 = 10041061669 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 41237864 + ... + 41238113.

It is an arithmetic number, because the mean of its divisors is an integer number (1608281571).

Almost surely, 210309497125 is an apocalyptic number.

It is an amenable number.

10309497125 is a deficient number, since it is larger than the sum of its proper divisors (2556755443).

10309497125 is an frugal number, since it uses more digits than its factorization.

10309497125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82475992 (or 82475982 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 10309497125 in words is "ten billion, three hundred nine million, four hundred ninety-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 82475977 412379885 2061899425 10309497125