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130007502 = 23219337423
BaseRepresentation
bin1111011111111…
…00000111001110
3100001122001202200
413233330013032
5231240220002
620522302330
73136021422
oct757740716
9301561680
10130007502
1167427619
12376579a6
1320c1c021
14133a2b82
15b630b1c
hex7bfc1ce

130007502 has 24 divisors (see below), whose sum is σ = 283149984. Its totient is φ = 43110144.

The previous prime is 130007473. The next prime is 130007509. The reversal of 130007502 is 205700031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130007509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15238 + ... + 22185.

It is an arithmetic number, because the mean of its divisors is an integer number (11797916).

Almost surely, 2130007502 is an apocalyptic number.

130007502 is an abundant number, since it is smaller than the sum of its proper divisors (153142482).

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

130007502 is a wasteful number, since it uses less digits than its factorization.

130007502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37624 (or 37621 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 130007502 is about 11402.0832307083. The cubic root of 130007502 is about 506.5894462378.

Adding to 130007502 its reverse (205700031), we get a palindrome (335707533).

It can be divided in two parts, 13000 and 7502, that added together give a palindrome (20502).

The spelling of 130007502 in words is "one hundred thirty million, seven thousand, five hundred two".

Divisors: 1 2 3 6 9 18 193 386 579 1158 1737 3474 37423 74846 112269 224538 336807 673614 7222639 14445278 21667917 43335834 65003751 130007502