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13202928720 = 24355798597
BaseRepresentation
bin11000100101111010…
…01011010001010000
31021002010122021100000
430102331023101100
5204014422204340
610022040330000
7645116020362
oct142275132120
937063567300
1013202928720
115665788843
122685773900
131325443077
148d36b0d32
15524188d30
hex312f4b450

13202928720 has 240 divisors, whose sum is σ = 46569519360. Its totient is φ = 3475809792.

The previous prime is 13202928709. The next prime is 13202928749. The reversal of 13202928720 is 2782920231.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1531462 + ... + 1540058.

It is an arithmetic number, because the mean of its divisors is an integer number (194039664).

Almost surely, 213202928720 is an apocalyptic number.

13202928720 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 13202928720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23284759680).

13202928720 is an abundant number, since it is smaller than the sum of its proper divisors (33366590640).

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

13202928720 is an equidigital number, since it uses as much as digits as its factorization.

13202928720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8704 (or 8686 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 13202928720 in words is "thirteen billion, two hundred two million, nine hundred twenty-eight thousand, seven hundred twenty".