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130154520 = 23351084621
BaseRepresentation
bin1111100001000…
…00000000011000
3100001220112102210
413300200000120
5231304421040
620525355120
73140203146
oct760400030
9301815383
10130154520
1167518021
1237708aa0
1320c70c12
1413400596
15b65e480
hex7c20018

130154520 has 32 divisors (see below), whose sum is σ = 390463920. Its totient is φ = 34707840.

The previous prime is 130154513. The next prime is 130154527. The reversal of 130154520 is 25451031.

It is an interprime number because it is at equal distance from previous prime (130154513) and next prime (130154527).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130154527) 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, 542191 + ... + 542430.

Almost surely, 2130154520 is an apocalyptic number.

130154520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130154520 is an abundant number, since it is smaller than the sum of its proper divisors (260309400).

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

130154520 is a wasteful number, since it uses less digits than its factorization.

130154520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084635 (or 1084631 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 130154520 is about 11408.5283888852. The cubic root of 130154520 is about 506.7803319162.

The spelling of 130154520 in words is "one hundred thirty million, one hundred fifty-four thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1084621 2169242 3253863 4338484 5423105 6507726 8676968 10846210 13015452 16269315 21692420 26030904 32538630 43384840 65077260 130154520