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14893985 = 52978797
BaseRepresentation
bin111000110100…
…001110100001
31001000200201002
4320310032201
512303101420
61251121345
7240411461
oct70641641
931020632
1014893985
118453087
124ba3255
133116312
141d99ba1
151493075
hexe343a1

14893985 has 4 divisors (see below), whose sum is σ = 17872788. Its totient is φ = 11915184.

The previous prime is 14893979. The next prime is 14893987. The reversal of 14893985 is 58939841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58939841 = 157375413.

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 10764961 = 2032^2 + 3281^2 .

It is a cyclic number.

It is not a de Polignac number, because 14893985 - 28 = 14893729 is a prime.

It is a super-3 number, since 3×148939853 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14893987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489394 + ... + 1489403.

It is an arithmetic number, because the mean of its divisors is an integer number (4468197).

Almost surely, 214893985 is an apocalyptic number.

It is an amenable number.

14893985 is a deficient number, since it is larger than the sum of its proper divisors (2978803).

14893985 is an equidigital number, since it uses as much as digits as its factorization.

14893985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978802.

The product of its digits is 311040, while the sum is 47.

The square root of 14893985 is about 3859.2725998561. The cubic root of 14893985 is about 246.0388210706.

The spelling of 14893985 in words is "fourteen million, eight hundred ninety-three thousand, nine hundred eighty-five".

Divisors: 1 5 2978797 14893985