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14856981 = 34952327
BaseRepresentation
bin111000101011…
…001100010101
31000221210221120
4320223030111
512300410411
61250234153
7240165546
oct70531425
930853846
1014856981
1184282a7
124b85959
133102519
141d8a4cd
151487106
hexe2b315

14856981 has 4 divisors (see below), whose sum is σ = 19809312. Its totient is φ = 9904652.

The previous prime is 14856979. The next prime is 14856983. The reversal of 14856981 is 18965841.

14856981 is digitally balanced in base 2 and base 4, because in such bases 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18965841 = 36321947.

It is an interprime number because it is at equal distance from previous prime (14856979) and next prime (14856983).

It is a cyclic number.

It is not a de Polignac number, because 14856981 - 21 = 14856979 is a prime.

It is a super-2 number, since 2×148569812 = 441459768868722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14856983) 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, 2476161 + ... + 2476166.

It is an arithmetic number, because the mean of its divisors is an integer number (4952328).

Almost surely, 214856981 is an apocalyptic number.

It is an amenable number.

14856981 is a deficient number, since it is larger than the sum of its proper divisors (4952331).

14856981 is an equidigital number, since it uses as much as digits as its factorization.

14856981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952330.

The product of its digits is 69120, while the sum is 42.

The square root of 14856981 is about 3854.4754506936. The cubic root of 14856981 is about 245.8348915219.

The spelling of 14856981 in words is "fourteen million, eight hundred fifty-six thousand, nine hundred eighty-one".

Divisors: 1 3 4952327 14856981