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14247917 = 139102503
BaseRepresentation
bin110110010110…
…011111101101
3222210212110122
4312112133231
512121413132
61225214325
7232051055
oct66263755
928725418
1014247917
118051742
1249313a5
132c4b228
141c6c565
1513b6912
hexd967ed

14247917 has 4 divisors (see below), whose sum is σ = 14350560. Its totient is φ = 14145276.

The previous prime is 14247901. The next prime is 14247943. The reversal of 14247917 is 71974241.

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.

It is a cyclic number.

It is not a de Polignac number, because 14247917 - 24 = 14247901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14247517) 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, 51113 + ... + 51390.

It is an arithmetic number, because the mean of its divisors is an integer number (3587640).

Almost surely, 214247917 is an apocalyptic number.

It is an amenable number.

14247917 is a deficient number, since it is larger than the sum of its proper divisors (102643).

14247917 is a wasteful number, since it uses less digits than its factorization.

14247917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102642.

The product of its digits is 14112, while the sum is 35.

The square root of 14247917 is about 3774.6413074622. The cubic root of 14247917 is about 242.4285657734.

The spelling of 14247917 in words is "fourteen million, two hundred forty-seven thousand, nine hundred seventeen".

Divisors: 1 139 102503 14247917