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13297663 = 194714891
BaseRepresentation
bin110010101110…
…011111111111
3221000120222001
4302232133333
511401011123
61153003131
7221012461
oct62563777
927016861
1013297663
117562805
1245534a7
1329a7852
141aa2131
15127a0ad
hexcae7ff

13297663 has 8 divisors (see below), whose sum is σ = 14296320. Its totient is φ = 12328920.

The previous prime is 13297619. The next prime is 13297681. The reversal of 13297663 is 36679231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13297663 - 217 = 13166591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13292663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6553 + ... + 8338.

It is an arithmetic number, because the mean of its divisors is an integer number (1787040).

Almost surely, 213297663 is an apocalyptic number.

13297663 is a deficient number, since it is larger than the sum of its proper divisors (998657).

13297663 is a wasteful number, since it uses less digits than its factorization.

13297663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14957.

The product of its digits is 40824, while the sum is 37.

The square root of 13297663 is about 3646.5960840214. The cubic root of 13297663 is about 236.9145721650.

The spelling of 13297663 in words is "thirteen million, two hundred ninety-seven thousand, six hundred sixty-three".

Divisors: 1 19 47 893 14891 282929 699877 13297663