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13291401 = 323192629
BaseRepresentation
bin110010101100…
…111110001001
3221000021101010
4302230332021
511400311101
61152514133
7220655304
oct62547611
927007333
1013291401
117559032
12454b949
1329a4a46
141a9db3b
1512782d6
hexcacf89

13291401 has 8 divisors (see below), whose sum is σ = 18492480. Its totient is φ = 8475632.

The previous prime is 13291381. The next prime is 13291403. The reversal of 13291401 is 10419231.

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 13291401 - 26 = 13291337 is a prime.

It is a super-2 number, since 2×132914012 = 353322681085602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13291403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96246 + ... + 96383.

It is an arithmetic number, because the mean of its divisors is an integer number (2311560).

Almost surely, 213291401 is an apocalyptic number.

It is an amenable number.

13291401 is a deficient number, since it is larger than the sum of its proper divisors (5201079).

13291401 is a wasteful number, since it uses less digits than its factorization.

13291401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192655.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 13291401 is about 3645.7373739753. The cubic root of 13291401 is about 236.8773778603.

The spelling of 13291401 in words is "thirteen million, two hundred ninety-one thousand, four hundred one".

Divisors: 1 3 23 69 192629 577887 4430467 13291401