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15120502130 = 251512050213
BaseRepresentation
bin11100001010100000…
…01000110101110010
31110000202220002112102
432011100020311302
5221431322032010
610540220500402
71043462101406
oct160520106562
943022802472
1015120502130
11645a147058
122b1b9aa702
13156c7ba6a6
14a36231106
155d76b8ba5
hex385408d72

15120502130 has 8 divisors (see below), whose sum is σ = 27216903852. Its totient is φ = 6048200848.

The previous prime is 15120502091. The next prime is 15120502139. The reversal of 15120502130 is 3120502151.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14330723521 + 789778609 = 119711^2 + 28103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (15120502139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756025097 + ... + 756025116.

Almost surely, 215120502130 is an apocalyptic number.

15120502130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15120502130 is a deficient number, since it is larger than the sum of its proper divisors (12096401722).

15120502130 is a wasteful number, since it uses less digits than its factorization.

15120502130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512050220.

The product of its (nonzero) digits is 300, while the sum is 20.

The spelling of 15120502130 in words is "fifteen billion, one hundred twenty million, five hundred two thousand, one hundred thirty".

Divisors: 1 2 5 10 1512050213 3024100426 7560251065 15120502130