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130125031 = 598924781
BaseRepresentation
bin1111100000110…
…00110011100111
3100001212000222121
413300120303213
5231303000111
620525010411
73140021161
oct760306347
9301760877
10130125031
11674a7953
12376b3a07
1320c6067a
14133d3931
15b655871
hex7c18ce7

130125031 has 8 divisors (see below), whose sum is σ = 133822800. Its totient is φ = 126477120.

The previous prime is 130125029. The next prime is 130125049. The reversal of 130125031 is 130521031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130125031 - 21 = 130125029 is a prime.

It is a super-2 number, since 2×1301250312 = 33865047385501922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 130124996 and 130125014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130125071) 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, 7140 + ... + 17641.

It is an arithmetic number, because the mean of its divisors is an integer number (16727850).

Almost surely, 2130125031 is an apocalyptic number.

130125031 is a deficient number, since it is larger than the sum of its proper divisors (3697769).

130125031 is an equidigital number, since it uses as much as digits as its factorization.

130125031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24929.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 130125031 is about 11407.2359053366. The cubic root of 130125031 is about 506.7420554276.

Adding to 130125031 its reverse (130521031), we get a palindrome (260646062).

The spelling of 130125031 in words is "one hundred thirty million, one hundred twenty-five thousand, thirty-one".

Divisors: 1 59 89 5251 24781 1462079 2205509 130125031