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130500520 = 2357434391
BaseRepresentation
bin1111100011101…
…00011110101000
3100002120010001121
413301310132220
5231402004040
620541025024
73143143663
oct761643650
9302503047
10130500520
1167733a77
1237855174
1321062557
14134906da
15b6cbc4a
hex7c747a8

130500520 has 32 divisors (see below), whose sum is σ = 294088320. Its totient is φ = 52118080.

The previous prime is 130500511. The next prime is 130500521. The reversal of 130500520 is 25005031.

It is a junction number, because it is equal to n+sod(n) for n = 130500494 and 130500503.

It is not an unprimeable number, because it can be changed into a prime (130500521) 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, 27525 + ... + 31915.

It is an arithmetic number, because the mean of its divisors is an integer number (9190260).

Almost surely, 2130500520 is an apocalyptic number.

130500520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130500520 is an abundant number, since it is smaller than the sum of its proper divisors (163587800).

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

130500520 is a wasteful number, since it uses less digits than its factorization.

130500520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145 (or 5141 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 130500520 is about 11423.6824185549. The cubic root of 130500520 is about 507.2290059108.

Adding to 130500520 its reverse (25005031), we get a palindrome (155505551).

The spelling of 130500520 in words is "one hundred thirty million, five hundred thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 743 1486 2972 3715 4391 5944 7430 8782 14860 17564 21955 29720 35128 43910 87820 175640 3262513 6525026 13050052 16312565 26100104 32625130 65250260 130500520