Search a number
-
+
13160817911808 = 2113271495031361
BaseRepresentation
bin1011111110000011110111…
…1000000110100000000000
31201121011101000202220100100
42333200331320012200000
53211111323341134213
643553555110322400
72525560223322210
oct277407570064000
951534330686310
1013160817911808
114214520678126
1215867a3359400
137460a1509a08
14336db6408240
1517c522d38773
hexbf83de06800

13160817911808 has 576 divisors, whose sum is σ = 43851671136000. Its totient is φ = 3724832931840.

The previous prime is 13160817911807. The next prime is 13160817911833. The reversal of 13160817911808 is 80811971806131.

13160817911808 is a `hidden beast` number, since 1 + 3 + 1 + 608 + 17 + 9 + 1 + 18 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (13160817911807) 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 47 ways as a sum of consecutive naturals, for example, 9669961048 + ... + 9669962408.

It is an arithmetic number, because the mean of its divisors is an integer number (76131373500).

Almost surely, 213160817911808 is an apocalyptic number.

13160817911808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13160817911808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21925835568000).

13160817911808 is an abundant number, since it is smaller than the sum of its proper divisors (30690853224192).

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

13160817911808 is a wasteful number, since it uses less digits than its factorization.

13160817911808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 54.

The spelling of 13160817911808 in words is "thirteen trillion, one hundred sixty billion, eight hundred seventeen million, nine hundred eleven thousand, eight hundred eight".