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130449625 = 531043597
BaseRepresentation
bin1111100011010…
…00000011011001
3100002110112020121
413301220003121
5231343342000
620535553241
73142542415
oct761500331
9302415217
10130449625
11676a9809
123782b821
1321045337
1413479d45
15b6bbb1a
hex7c680d9

130449625 has 8 divisors (see below), whose sum is σ = 162801288. Its totient is φ = 104359600.

The previous prime is 130449617. The next prime is 130449637. The reversal of 130449625 is 526944031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2782224 + 127667401 = 1668^2 + 11299^2 .

It is not a de Polignac number, because 130449625 - 23 = 130449617 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 521674 + ... + 521923.

It is an arithmetic number, because the mean of its divisors is an integer number (20350161).

Almost surely, 2130449625 is an apocalyptic number.

It is an amenable number.

130449625 is a deficient number, since it is larger than the sum of its proper divisors (32351663).

130449625 is an equidigital number, since it uses as much as digits as its factorization.

130449625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043612 (or 1043602 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 130449625 is about 11421.4545921262. The cubic root of 130449625 is about 507.1630578288.

The spelling of 130449625 in words is "one hundred thirty million, four hundred forty-nine thousand, six hundred twenty-five".

Divisors: 1 5 25 125 1043597 5217985 26089925 130449625