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14289919 = 721915349
BaseRepresentation
bin110110100000…
…101111111111
3222220000002021
4312200233333
512124234134
61230141011
7232314400
oct66405777
928800067
1014289919
118080256
124951767
132c64397
141c7d9a7
1513c40b4
hexda0bff

14289919 has 12 divisors (see below), whose sum is σ = 17499000. Its totient is φ = 11603088.

The previous prime is 14289917. The next prime is 14289931. The reversal of 14289919 is 91998241.

It is a happy number.

It is not a de Polignac number, because 14289919 - 21 = 14289917 is a prime.

It is a super-2 number, since 2×142899192 = 408403570053122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14289917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6744 + ... + 8605.

It is an arithmetic number, because the mean of its divisors is an integer number (1458250).

Almost surely, 214289919 is an apocalyptic number.

14289919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

14289919 is the 2183-rd hex number.

14289919 is a deficient number, since it is larger than the sum of its proper divisors (3209081).

14289919 is a wasteful number, since it uses less digits than its factorization.

14289919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15382 (or 15375 counting only the distinct ones).

The product of its digits is 46656, while the sum is 43.

The square root of 14289919 is about 3780.2009205861. The cubic root of 14289919 is about 242.6665536653. Note that the first 3 decimals are identical.

The spelling of 14289919 in words is "fourteen million, two hundred eighty-nine thousand, nine hundred nineteen".

Divisors: 1 7 19 49 133 931 15349 107443 291631 752101 2041417 14289919