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14155393 = 729103677
BaseRepresentation
bin110101111111…
…111010000001
3222122011112211
4311333322001
512110433033
61223222121
7231214240
oct65777201
928564484
1014155393
117a9917a
1248a7941
132c18095
141c46957
1513992cd
hexd7fe81

14155393 has 16 divisors (see below), whose sum is σ = 16922880. Its totient is φ = 11583936.

The previous prime is 14155391. The next prime is 14155403. The reversal of 14155393 is 39355141.

It is a happy number.

It is not a de Polignac number, because 14155393 - 21 = 14155391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14155391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20571 + ... + 21247.

It is an arithmetic number, because the mean of its divisors is an integer number (1057680).

Almost surely, 214155393 is an apocalyptic number.

It is an amenable number.

14155393 is a deficient number, since it is larger than the sum of its proper divisors (2767487).

14155393 is a wasteful number, since it uses less digits than its factorization.

14155393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its digits is 8100, while the sum is 31.

The square root of 14155393 is about 3762.3653464277. The cubic root of 14155393 is about 241.9026598935.

The spelling of 14155393 in words is "fourteen million, one hundred fifty-five thousand, three hundred ninety-three".

Divisors: 1 7 29 103 203 677 721 2987 4739 19633 20909 69731 137431 488117 2022199 14155393