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14957993 = 61379647
BaseRepresentation
bin111001000011…
…110110101001
31001010221111202
4321003312221
512312123433
61252333545
7241066211
oct71036651
931127452
1014957993
118497186
1250142b5
1331394ab
141db5241
1514a6ee8
hexe43da9

14957993 has 8 divisors (see below), whose sum is σ = 15266880. Its totient is φ = 14651280.

The previous prime is 14957947. The next prime is 14958017. The reversal of 14957993 is 39975941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14957993 - 28 = 14957737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14957893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22796 + ... + 23442.

It is an arithmetic number, because the mean of its divisors is an integer number (1908360).

Almost surely, 214957993 is an apocalyptic number.

It is an amenable number.

14957993 is a deficient number, since it is larger than the sum of its proper divisors (308887).

14957993 is an equidigital number, since it uses as much as digits as its factorization.

14957993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its digits is 306180, while the sum is 47.

The square root of 14957993 is about 3867.5564637119. The cubic root of 14957993 is about 246.3907740351.

The spelling of 14957993 in words is "fourteen million, nine hundred fifty-seven thousand, nine hundred ninety-three".

Divisors: 1 61 379 647 23119 39467 245213 14957993