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13297253760 = 273357211521
BaseRepresentation
bin11000110001001001…
…11111110110000000
31021022201010110222000
430120210333312000
5204213044110020
610035250144000
7650342535450
oct143044776600
937281113860
1013297253760
115703a5361a
1226b1282000
13133bb4a7bb
14902025d60
1552c5bc090
hex31893fd80

13297253760 has 512 divisors, whose sum is σ = 54181094400. Its totient is φ = 3019161600.

The previous prime is 13297253699. The next prime is 13297253777. The reversal of 13297253760 is 6735279231.

13297253760 is a `hidden beast` number, since 1 + 329 + 7 + 253 + 76 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25522300 + ... + 25522820.

It is an arithmetic number, because the mean of its divisors is an integer number (105822450).

Almost surely, 213297253760 is an apocalyptic number.

13297253760 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 13297253760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27090547200).

13297253760 is an abundant number, since it is smaller than the sum of its proper divisors (40883840640).

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

13297253760 is a wasteful number, since it uses less digits than its factorization.

13297253760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 13297253760 in words is "thirteen billion, two hundred ninety-seven million, two hundred fifty-three thousand, seven hundred sixty".