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12813366309120 = 283451319509983
BaseRepresentation
bin1011101001110101100000…
…1001011011000100000000
31200100221112112021200220000
42322131120021123010000
53134413233233342440
643130213524520000
72461510106403546
oct272353011330400
950327475250800
1012813366309120
1140a0133268463
12152b396550000
1371c3ab8b45c0
143242551c3d96
151734898c0730
hexba75825b100

12813366309120 has 1440 divisors, whose sum is σ = 52129171987200. Its totient is φ = 2979152068608.

The previous prime is 12813366309103. The next prime is 12813366309179. The reversal of 12813366309120 is 2190366331821.

12813366309120 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 3 + 3 + 6 + 630 + 9 + 1 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13034960149 + ... + 13034961131.

It is an arithmetic number, because the mean of its divisors is an integer number (36200813880).

Almost surely, 212813366309120 is an apocalyptic number.

12813366309120 is a gapful number since it is divisible by the number (10) 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 12813366309120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26064585993600).

12813366309120 is an abundant number, since it is smaller than the sum of its proper divisors (39315805678080).

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

12813366309120 is a wasteful number, since it uses less digits than its factorization.

12813366309120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 12813366309120 in words is "twelve trillion, eight hundred thirteen billion, three hundred sixty-six million, three hundred nine thousand, one hundred twenty".