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130124101 = 929140069
BaseRepresentation
bin1111100000110…
…00100101000101
3100001211222201011
413300120211011
5231302432401
620525002221
73140015362
oct760304505
9301758634
10130124101
11674a7188
12376b3371
1320c60113
14133d3469
15b655451
hex7c18945

130124101 has 4 divisors (see below), whose sum is σ = 130265100. Its totient is φ = 129983104.

The previous prime is 130124083. The next prime is 130124167. The reversal of 130124101 is 101421031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 88830625 = 6426^2 + 9425^2 .

It is a cyclic number.

It is not a de Polignac number, because 130124101 - 217 = 129993029 is a prime.

It is a super-2 number, since 2×1301241012 = 33864563322116402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130124801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69106 + ... + 70963.

It is an arithmetic number, because the mean of its divisors is an integer number (32566275).

Almost surely, 2130124101 is an apocalyptic number.

It is an amenable number.

130124101 is a deficient number, since it is larger than the sum of its proper divisors (140999).

130124101 is an equidigital number, since it uses as much as digits as its factorization.

130124101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140998.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 130124101 is about 11407.1951416639. The cubic root of 130124101 is about 506.7408482009.

Adding to 130124101 its reverse (101421031), we get a palindrome (231545132).

The spelling of 130124101 in words is "one hundred thirty million, one hundred twenty-four thousand, one hundred one".

Divisors: 1 929 140069 130124101