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14391937 = 7341959
BaseRepresentation
bin110110111001…
…101010000001
31000002012000201
4312321222001
512141020222
61232245201
7233221000
oct66715201
930065021
1014391937
11813a96a
1249a0801
132c9b951
141ca8c37
1513e4427
hexdb9a81

14391937 has 8 divisors (see below), whose sum is σ = 16784000. Its totient is φ = 12335652.

The previous prime is 14391919. The next prime is 14391941. The reversal of 14391937 is 73919341.

14391937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-14391937 is a prime.

It is a super-2 number, since 2×143919372 = 414255701223938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14391896 and 14391905.

It is not an unprimeable number, because it can be changed into a prime (14391907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20637 + ... + 21322.

It is an arithmetic number, because the mean of its divisors is an integer number (2098000).

Almost surely, 214391937 is an apocalyptic number.

It is an amenable number.

14391937 is a deficient number, since it is larger than the sum of its proper divisors (2392063).

14391937 is an frugal number, since it uses more digits than its factorization.

14391937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41980 (or 41966 counting only the distinct ones).

The product of its digits is 20412, while the sum is 37.

The square root of 14391937 is about 3793.6706499115. The cubic root of 14391937 is about 243.2426632019.

The spelling of 14391937 in words is "fourteen million, three hundred ninety-one thousand, nine hundred thirty-seven".

Divisors: 1 7 49 343 41959 293713 2055991 14391937