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14305979 = 103138893
BaseRepresentation
bin110110100100…
…101010111011
3222220211010002
4312210222323
512130242404
61230343215
7232412252
oct66445273
928824102
1014305979
118091326
12495ab0b
132c6b79c
141c85799
1513c8c1e
hexda4abb

14305979 has 4 divisors (see below), whose sum is σ = 14444976. Its totient is φ = 14166984.

The previous prime is 14305969. The next prime is 14306009. The reversal of 14305979 is 97950341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97950341 = 243740193.

It is a cyclic number.

It is not a de Polignac number, because 14305979 - 28 = 14305723 is a prime.

It is a super-2 number, since 2×143059792 = 409322070296882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14305909) 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, 69344 + ... + 69549.

It is an arithmetic number, because the mean of its divisors is an integer number (3611244).

Almost surely, 214305979 is an apocalyptic number.

14305979 is a deficient number, since it is larger than the sum of its proper divisors (138997).

14305979 is a wasteful number, since it uses less digits than its factorization.

14305979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138996.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 14305979 is about 3782.3245497974. The cubic root of 14305979 is about 242.7574281196.

The spelling of 14305979 in words is "fourteen million, three hundred five thousand, nine hundred seventy-nine".

Divisors: 1 103 138893 14305979