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14279993 = 713212071
BaseRepresentation
bin110110011110…
…010100111001
3222212111110122
4312132110321
512123424433
61230023025
7232243430
oct66362471
928774418
1014279993
118073852
124947a75
132c5ca00
141c7a117
1513c1198
hexd9e539

14279993 has 12 divisors (see below), whose sum is σ = 17673408. Its totient is φ = 11297520.

The previous prime is 14279971. The next prime is 14280029. The reversal of 14279993 is 39997241.

It is not a de Polignac number, because 14279993 - 26 = 14279929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14279953) 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, 4853 + ... + 7218.

It is an arithmetic number, because the mean of its divisors is an integer number (1472784).

Almost surely, 214279993 is an apocalyptic number.

14279993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

14279993 is a deficient number, since it is larger than the sum of its proper divisors (3393415).

14279993 is a wasteful number, since it uses less digits than its factorization.

14279993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12104 (or 12091 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 14279993 is about 3778.8877993399. The cubic root of 14279993 is about 242.6103539967.

The spelling of 14279993 in words is "fourteen million, two hundred seventy-nine thousand, nine hundred ninety-three".

Divisors: 1 7 13 91 169 1183 12071 84497 156923 1098461 2039999 14279993