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14993893 = 472631213
BaseRepresentation
bin111001001100…
…100111100101
31001012202202101
4321030213211
512314301033
61253212101
7241305655
oct71144745
931182671
1014993893
118511152
125031031
13314c935
141dc4365
1514b297d
hexe4c9e5

14993893 has 8 divisors (see below), whose sum is σ = 15383808. Its totient is φ = 14607024.

The previous prime is 14993873. The next prime is 14993897. The reversal of 14993893 is 39839941.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14993893 is a prime.

It is a super-4 number, since 4×149938934 (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14993897) 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, 11755 + ... + 12967.

It is an arithmetic number, because the mean of its divisors is an integer number (1922976).

Almost surely, 214993893 is an apocalyptic number.

It is an amenable number.

14993893 is a deficient number, since it is larger than the sum of its proper divisors (389915).

14993893 is a wasteful number, since it uses less digits than its factorization.

14993893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its digits is 209952, while the sum is 46.

The square root of 14993893 is about 3872.1948556342. The cubic root of 14993893 is about 246.5877336518.

The spelling of 14993893 in words is "fourteen million, nine hundred ninety-three thousand, eight hundred ninety-three".

Divisors: 1 47 263 1213 12361 57011 319019 14993893