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13669057 = 47337863
BaseRepresentation
bin110100001001…
…001011000001
3221201110102101
4310021023001
511444402212
61204550401
7224120323
oct64111301
927643371
1013669057
117796846
1246b2401
132aa78cc
141b5b613
151300157
hexd092c1

13669057 has 8 divisors (see below), whose sum is σ = 14017536. Its totient is φ = 13323072.

The previous prime is 13669049. The next prime is 13669067. The reversal of 13669057 is 75096631.

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 13669057 - 23 = 13669049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13669067) 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, 15408 + ... + 16270.

It is an arithmetic number, because the mean of its divisors is an integer number (1752192).

Almost surely, 213669057 is an apocalyptic number.

It is an amenable number.

13669057 is a deficient number, since it is larger than the sum of its proper divisors (348479).

13669057 is an equidigital number, since it uses as much as digits as its factorization.

13669057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 13669057 is about 3697.1687816490. The cubic root of 13669057 is about 239.0999681003.

The spelling of 13669057 in words is "thirteen million, six hundred sixty-nine thousand, fifty-seven".

Divisors: 1 47 337 863 15839 40561 290831 13669057