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15130000450 = 2521731749133
BaseRepresentation
bin11100001011101000…
…10111110001000010
31110001102202122210001
432011310113301002
5221441240003300
610541200230214
71043635611325
oct160564276102
943042678701
1015130000450
116464544304
122b2300b36a
131571764ab6
14a375c47bc
155d844316a
hex385d17c42

15130000450 has 24 divisors (see below), whose sum is σ = 28304486388. Its totient is φ = 6017014080.

The previous prime is 15130000439. The next prime is 15130000451. The reversal of 15130000450 is 5400003151.

It can be written as a sum of positive squares in 6 ways, for example, as 11571520041 + 3558480409 = 107571^2 + 59653^2 .

It is not an unprimeable number, because it can be changed into a prime (15130000451) 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, 865917 + ... + 883216.

Almost surely, 215130000450 is an apocalyptic number.

15130000450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15130000450 is a deficient number, since it is larger than the sum of its proper divisors (13174485938).

15130000450 is a wasteful number, since it uses less digits than its factorization.

15130000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749318 (or 1749313 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The spelling of 15130000450 in words is "fifteen billion, one hundred thirty million, four hundred fifty", and thus it is an aban number.

Divisors: 1 2 5 10 25 50 173 346 865 1730 4325 8650 1749133 3498266 8745665 17491330 43728325 87456650 302600009 605200018 1513000045 3026000090 7565000225 15130000450