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14918986 = 27459493
BaseRepresentation
bin111000111010…
…010101001010
31001001222000001
4320322111022
512304401421
61251433214
7240544405
oct70722512
931058001
1014918986
11846a945
124bb580a
133124804
141da4d3c
15149a691
hexe3a54a

14918986 has 4 divisors (see below), whose sum is σ = 22378482. Its totient is φ = 7459492.

The previous prime is 14918983. The next prime is 14918987. The reversal of 14918986 is 68981941.

14918986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68981941 = 79854563.

It can be written as a sum of positive squares in only one way, i.e., 14402025 + 516961 = 3795^2 + 719^2 .

It is a super-2 number, since 2×149189862 = 445152286536392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14918983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3729745 + ... + 3729748.

Almost surely, 214918986 is an apocalyptic number.

14918986 is a deficient number, since it is larger than the sum of its proper divisors (7459496).

14918986 is an equidigital number, since it uses as much as digits as its factorization.

14918986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459495.

The product of its digits is 124416, while the sum is 46.

The square root of 14918986 is about 3862.5103236108. The cubic root of 14918986 is about 246.1764107970.

The spelling of 14918986 in words is "fourteen million, nine hundred eighteen thousand, nine hundred eighty-six".

Divisors: 1 2 7459493 14918986