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13297053696 = 21233167521
BaseRepresentation
bin11000110001001000…
…01111000000000000
31021022200202022112020
430120210033000000
5204213021204241
610035242001440
7650341043253
oct143044170000
937280668466
1013297053696
115703927283
1226b11a6280
13133baaa714
14901db309a
1552c57cb66
hex31890f000

13297053696 has 208 divisors, whose sum is σ = 37215710208. Its totient is φ = 4217241600.

The previous prime is 13297053677. The next prime is 13297053709. The reversal of 13297053696 is 69635079231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25521916 + ... + 25522436.

Almost surely, 213297053696 is an apocalyptic number.

13297053696 is a gapful number since it is divisible by the number (16) 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 13297053696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18607855104).

13297053696 is an abundant number, since it is smaller than the sum of its proper divisors (23918656512).

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

13297053696 is an equidigital number, since it uses as much as digits as its factorization.

13297053696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 51.

The spelling of 13297053696 in words is "thirteen billion, two hundred ninety-seven million, fifty-three thousand, six hundred ninety-six".