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13926969 = 327435397
BaseRepresentation
bin110101001000…
…001000111001
3222012120012200
4311020020321
512031130334
61214300413
7226243260
oct65101071
928176180
1013926969
1179525a1
1247b7709
132b68114
141bc75d7
151351799
hexd48239

13926969 has 48 divisors (see below), whose sum is σ = 24216192. Its totient is φ = 7547904.

The previous prime is 13926959. The next prime is 13926977. The reversal of 13926969 is 96962931.

It is a happy number.

It is not a de Polignac number, because 13926969 - 24 = 13926953 is a prime.

It is a super-2 number, since 2×139269692 = 387920931053922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13926929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143529 + ... + 143625.

It is an arithmetic number, because the mean of its divisors is an integer number (504504).

Almost surely, 213926969 is an apocalyptic number.

It is an amenable number.

13926969 is a deficient number, since it is larger than the sum of its proper divisors (10289223).

13926969 is a wasteful number, since it uses less digits than its factorization.

13926969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 203 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 13926969 is about 3731.8854484027. The cubic root of 13926969 is about 240.5944120111.

The spelling of 13926969 in words is "thirteen million, nine hundred twenty-six thousand, nine hundred sixty-nine".

Divisors: 1 3 7 9 21 43 53 63 97 129 159 291 301 371 387 477 679 873 903 1113 2037 2279 2709 3339 4171 5141 6111 6837 12513 15423 15953 20511 29197 35987 37539 46269 47859 87591 107961 143577 221063 262773 323883 663189 1547441 1989567 4642323 13926969