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14506681 = 72072383
BaseRepresentation
bin110111010101…
…101010111001
31000022000102111
4313111222321
512203203211
61234532321
7234206350
oct67255271
930260374
1014506681
1182090a2
124a370a1
13300bc47
141cd8997
151418421
hexdd5ab9

14506681 has 4 divisors (see below), whose sum is σ = 16579072. Its totient is φ = 12434292.

The previous prime is 14506673. The next prime is 14506703. The reversal of 14506681 is 18660541.

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: 18660541 = 89209669.

It is a cyclic number.

It is not a de Polignac number, because 14506681 - 23 = 14506673 is a prime.

It is a super-2 number, since 2×145066812 = 420887587271522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14506181) 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, 1036185 + ... + 1036198.

It is an arithmetic number, because the mean of its divisors is an integer number (4144768).

Almost surely, 214506681 is an apocalyptic number.

It is an amenable number.

14506681 is a deficient number, since it is larger than the sum of its proper divisors (2072391).

14506681 is an equidigital number, since it uses as much as digits as its factorization.

14506681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072390.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 14506681 is about 3808.7637101821. The cubic root of 14506681 is about 243.8873942916.

The spelling of 14506681 in words is "fourteen million, five hundred six thousand, six hundred eighty-one".

Divisors: 1 7 2072383 14506681