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13873669 = 23603203
BaseRepresentation
bin110100111011…
…001000000101
3222002212002121
4310323020011
512022424134
61213205541
7225632005
oct64731005
928085077
1013873669
117916547
1247908b1
132b49a94
141bb2005
151340ab4
hexd3b205

13873669 has 4 divisors (see below), whose sum is σ = 14476896. Its totient is φ = 13270444.

The previous prime is 13873661. The next prime is 13873679. The reversal of 13873669 is 96637831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96637831 = 293332339.

It is a cyclic number.

It is not a de Polignac number, because 13873669 - 23 = 13873661 is a prime.

It is a super-2 number, since 2×138736692 = 384957383043122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13873661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301579 + ... + 301624.

It is an arithmetic number, because the mean of its divisors is an integer number (3619224).

Almost surely, 213873669 is an apocalyptic number.

It is an amenable number.

13873669 is a deficient number, since it is larger than the sum of its proper divisors (603227).

13873669 is an equidigital number, since it uses as much as digits as its factorization.

13873669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603226.

The product of its digits is 163296, while the sum is 43.

The square root of 13873669 is about 3724.7374404111. The cubic root of 13873669 is about 240.2870927796.

The spelling of 13873669 in words is "thirteen million, eight hundred seventy-three thousand, six hundred sixty-nine".

Divisors: 1 23 603203 13873669