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14018989 = 43326023
BaseRepresentation
bin110101011110…
…100110101101
3222101020102211
4311132212231
512042101424
61220250421
7230105455
oct65364655
928336384
1014018989
117a05746
124840a11
132b9ac7a
141c0cd65
15136db94
hexd5e9ad

14018989 has 4 divisors (see below), whose sum is σ = 14345056. Its totient is φ = 13692924.

The previous prime is 14018929. The next prime is 14019011. The reversal of 14018989 is 98981041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14018989 - 213 = 14010797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14018909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162969 + ... + 163054.

It is an arithmetic number, because the mean of its divisors is an integer number (3586264).

Almost surely, 214018989 is an apocalyptic number.

It is an amenable number.

14018989 is a deficient number, since it is larger than the sum of its proper divisors (326067).

14018989 is an equidigital number, since it uses as much as digits as its factorization.

14018989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326066.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 14018989 is about 3744.1940387752. The cubic root of 14018989 is about 241.1231443110.

The spelling of 14018989 in words is "fourteen million, eighteen thousand, nine hundred eighty-nine".

Divisors: 1 43 326023 14018989