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13315157730 = 233572928377
BaseRepresentation
bin11000110011010010…
…10010111011100010
31021100221211002121000
430121221102323202
5204232140021410
610041130012430
7650650654560
oct143151227342
937327732530
1013315157730
115713072096
1226b7277116
131342778b74
14904566a30
1552de56dc0
hex319a52ee2

13315157730 has 192 divisors, whose sum is σ = 42032090880. Its totient is φ = 2938166784.

The previous prime is 13315157729. The next prime is 13315157731. The reversal of 13315157730 is 3775151331.

13315157730 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 51 + 577 + 30 = 666.

13315157730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13315157729) and next prime (13315157731).

It is not an unprimeable number, because it can be changed into a prime (13315157731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1585302 + ... + 1593678.

It is an arithmetic number, because the mean of its divisors is an integer number (218917140).

Almost surely, 213315157730 is an apocalyptic number.

13315157730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13315157730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21016045440).

13315157730 is an abundant number, since it is smaller than the sum of its proper divisors (28716933150).

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

13315157730 is a wasteful number, since it uses less digits than its factorization.

13315157730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8458 (or 8423 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The spelling of 13315157730 in words is "thirteen billion, three hundred fifteen million, one hundred fifty-seven thousand, seven hundred thirty".