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15131452120 = 235728351941
BaseRepresentation
bin11100001011110011…
…11010001011011000
31110001112111102002121
432011321322023120
5221442122431440
610541251311024
71043654135521
oct160571721330
943045442077
1015131452120
116465345a34
122b235ab474
131571b52785
14a37881848
155d862d34a
hex385e7a2d8

15131452120 has 32 divisors (see below), whose sum is σ = 34051097520. Its totient is φ = 6051633280.

The previous prime is 15131452117. The next prime is 15131452121. The reversal of 15131452120 is 2125413151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15131452121) 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, 265350 + ... + 317290.

Almost surely, 215131452120 is an apocalyptic number.

15131452120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15131452120 is an abundant number, since it is smaller than the sum of its proper divisors (18919645400).

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

15131452120 is a wasteful number, since it uses less digits than its factorization.

15131452120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59235 (or 59231 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 15131452120 its reverse (2125413151), we get a palindrome (17256865271).

The spelling of 15131452120 in words is "fifteen billion, one hundred thirty-one million, four hundred fifty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 7283 14566 29132 36415 51941 58264 72830 103882 145660 207764 259705 291320 415528 519410 1038820 2077640 378286303 756572606 1513145212 1891431515 3026290424 3782863030 7565726060 15131452120