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13495707720 = 233251117307653
BaseRepresentation
bin11001001000110100…
…00010100001001000
31021211112112222121200
430210122002201020
5210114400121340
610111055504200
7655302423435
oct144432024110
937745488550
1013495707720
1157a5a7aa60
122747828060
131370cb3191
14920524b8c
1553ec1d330
hex324682848

13495707720 has 384 divisors, whose sum is σ = 50905895040. Its totient is φ = 3064504320.

The previous prime is 13495707713. The next prime is 13495707721. The reversal of 13495707720 is 2770759431.

13495707720 is a `hidden beast` number, since 1 + 3 + 4 + 9 + 570 + 7 + 72 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (13495707721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20666914 + ... + 20667566.

It is an arithmetic number, because the mean of its divisors is an integer number (132567435).

Almost surely, 213495707720 is an apocalyptic number.

13495707720 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 13495707720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25452947520).

13495707720 is an abundant number, since it is smaller than the sum of its proper divisors (37410187320).

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

13495707720 is a wasteful number, since it uses less digits than its factorization.

13495707720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 13495707720 in words is "thirteen billion, four hundred ninety-five million, seven hundred seven thousand, seven hundred twenty".