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130531425 = 35219139659
BaseRepresentation
bin1111100011111…
…00000001100001
3100002121200110020
413301330001201
5231404001200
620541424053
73143333043
oct761740141
9302550406
10130531425
1167755212
123786b029
132107363b
141349ba93
15b6d5ea0
hex7c7c061

130531425 has 48 divisors (see below), whose sum is σ = 229152000. Its totient is φ = 65378880.

The previous prime is 130531409. The next prime is 130531433. The reversal of 130531425 is 524135031.

It is not a de Polignac number, because 130531425 - 24 = 130531409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130531395 and 130531404.

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 47 ways as a sum of consecutive naturals, for example, 197746 + ... + 198404.

It is an arithmetic number, because the mean of its divisors is an integer number (4774000).

Almost surely, 2130531425 is an apocalyptic number.

130531425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130531425 is a deficient number, since it is larger than the sum of its proper divisors (98620575).

130531425 is a wasteful number, since it uses less digits than its factorization.

130531425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 130531425 is about 11425.0350108873. The cubic root of 130531425 is about 507.2690432357.

Adding to 130531425 its reverse (524135031), we get a palindrome (654666456).

The spelling of 130531425 in words is "one hundred thirty million, five hundred thirty-one thousand, four hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 139 285 417 475 659 695 1425 1977 2085 2641 3295 3475 7923 9885 10425 12521 13205 16475 37563 39615 49425 62605 66025 91601 187815 198075 274803 313025 458005 939075 1374015 1740419 2290025 5221257 6870075 8702095 26106285 43510475 130531425