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15126291340 = 225756314567
BaseRepresentation
bin11100001011001100…
…01110001110001100
31110001011210012211121
432011212032032030
5221434312310330
610540544530324
71043562232516
oct160546161614
943034705747
1015126291340
116462440626
122b219209a4
131570a66764
14a36cdabb6
155d7e5e17a
hex38598e38c

15126291340 has 12 divisors (see below), whose sum is σ = 31765211856. Its totient is φ = 6050516528.

The previous prime is 15126291317. The next prime is 15126291377. The reversal of 15126291340 is 4319262151.

It is a junction number, because it is equal to n+sod(n) for n = 15126291296 and 15126291305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378157264 + ... + 378157303.

It is an arithmetic number, because the mean of its divisors is an integer number (2647100988).

Almost surely, 215126291340 is an apocalyptic number.

15126291340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15126291340 is an abundant number, since it is smaller than the sum of its proper divisors (16638920516).

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

15126291340 is a wasteful number, since it uses less digits than its factorization.

15126291340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756314576 (or 756314574 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 15126291340 in words is "fifteen billion, one hundred twenty-six million, two hundred ninety-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 756314567 1512629134 3025258268 3781572835 7563145670 15126291340