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14811689 = 107138427
BaseRepresentation
bin111000100000…
…001000101001
31000212111211002
4320200020221
512242433224
61245244345
7236616524
oct70401051
930774732
1014811689
1183a7272
124b636b5
1330b7a19
141d77bbb
1514789ae
hexe20229

14811689 has 4 divisors (see below), whose sum is σ = 14950224. Its totient is φ = 14673156.

The previous prime is 14811679. The next prime is 14811703. The reversal of 14811689 is 98611841.

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 14811689 - 216 = 14746153 is a prime.

It is a super-2 number, since 2×148116892 = 438772262065442, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (14811679) 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, 69107 + ... + 69320.

It is an arithmetic number, because the mean of its divisors is an integer number (3737556).

Almost surely, 214811689 is an apocalyptic number.

It is an amenable number.

14811689 is a deficient number, since it is larger than the sum of its proper divisors (138535).

14811689 is a wasteful number, since it uses less digits than its factorization.

14811689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138534.

The product of its digits is 13824, while the sum is 38.

The square root of 14811689 is about 3848.5957179210. The cubic root of 14811689 is about 245.5848252940.

The spelling of 14811689 in words is "fourteen million, eight hundred eleven thousand, six hundred eighty-nine".

Divisors: 1 107 138427 14811689