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14388137 = 17846361
BaseRepresentation
bin110110111000…
…101110101001
31000001222210222
4312320232221
512140410022
61232215425
7233203631
oct66705651
930058728
1014388137
118138025
12499a575
132c99cba
141ca76c1
1513e3242
hexdb8ba9

14388137 has 4 divisors (see below), whose sum is σ = 15234516. Its totient is φ = 13541760.

The previous prime is 14388119. The next prime is 14388139. The reversal of 14388137 is 73188341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73188341 = 151484691.

It can be written as a sum of positive squares in 2 ways, for example, as 3916441 + 10471696 = 1979^2 + 3236^2 .

It is a cyclic number.

It is not a de Polignac number, because 14388137 - 216 = 14322601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14388097 and 14388106.

It is not an unprimeable number, because it can be changed into a prime (14388139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423164 + ... + 423197.

It is an arithmetic number, because the mean of its divisors is an integer number (3808629).

Almost surely, 214388137 is an apocalyptic number.

14388137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

14388137 is a deficient number, since it is larger than the sum of its proper divisors (846379).

14388137 is an equidigital number, since it uses as much as digits as its factorization.

14388137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846378.

The product of its digits is 16128, while the sum is 35.

The square root of 14388137 is about 3793.1697826488. The cubic root of 14388137 is about 243.2212529849.

The spelling of 14388137 in words is "fourteen million, three hundred eighty-eight thousand, one hundred thirty-seven".

Divisors: 1 17 846361 14388137