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130105624 = 23111786969
BaseRepresentation
bin1111100000101…
…00000100011000
3100001211001100211
413300110010120
5231301334444
620524340504
73136610455
oct760240430
9301731324
10130105624
1167494310
12376a4734
1320c5489c
14133ca82c
15b64ec34
hex7c14118

130105624 has 32 divisors (see below), whose sum is σ = 281782800. Its totient is φ = 55659520.

The previous prime is 130105589. The next prime is 130105639. The reversal of 130105624 is 426501031.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 130105595 and 130105604.

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, 41989 + ... + 44980.

Almost surely, 2130105624 is an apocalyptic number.

It is an amenable number.

130105624 is an abundant number, since it is smaller than the sum of its proper divisors (151677176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130105624 is a wasteful number, since it uses less digits than its factorization.

130105624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87003 (or 86999 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 130105624 is about 11406.3852293354. The cubic root of 130105624 is about 506.7168621399.

Adding to 130105624 its reverse (426501031), we get a palindrome (556606655).

The spelling of 130105624 in words is "one hundred thirty million, one hundred five thousand, six hundred twenty-four".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 136 187 374 748 1496 86969 173938 347876 695752 956659 1478473 1913318 2956946 3826636 5913892 7653272 11827784 16263203 32526406 65052812 130105624