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15306972950 = 252306139459
BaseRepresentation
bin11100100000101110…
…11101111100010110
31110111202202210102002
432100113131330112
5222322041113300
611010521315302
71051215060203
oct162027357426
943452683362
1015306972950
116545429375
122b72335b32
13159c318959
14a52cd0caa
155e8c4e5d5
hex3905ddf16

15306972950 has 12 divisors (see below), whose sum is σ = 28470969780. Its totient is φ = 6122789160.

The previous prime is 15306972943. The next prime is 15306972959. The reversal of 15306972950 is 5927960351.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 15306972895 and 15306972904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15306972959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153069680 + ... + 153069779.

It is an arithmetic number, because the mean of its divisors is an integer number (2372580815).

Almost surely, 215306972950 is an apocalyptic number.

15306972950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15306972950 is a deficient number, since it is larger than the sum of its proper divisors (13163996830).

15306972950 is a wasteful number, since it uses less digits than its factorization.

15306972950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306139471 (or 306139466 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 47.

The spelling of 15306972950 in words is "fifteen billion, three hundred six million, nine hundred seventy-two thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 306139459 612278918 1530697295 3061394590 7653486475 15306972950