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14808987 = 34237949
BaseRepresentation
bin111000011111…
…011110011011
31000212101010000
4320133132123
512242341422
61245224043
7236605614
oct70373633
930771100
1014808987
1183a5236
124b62023
1330b671b
141d76c0b
151477cac
hexe1f79b

14808987 has 20 divisors (see below), whose sum is σ = 23086800. Its totient is φ = 9442224.

The previous prime is 14808971. The next prime is 14809009. The reversal of 14808987 is 78980841.

It is not a de Polignac number, because 14808987 - 24 = 14808971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14808947) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2112 + ... + 5837.

It is an arithmetic number, because the mean of its divisors is an integer number (1154340).

Almost surely, 214808987 is an apocalyptic number.

14808987 is a deficient number, since it is larger than the sum of its proper divisors (8277813).

14808987 is an equidigital number, since it uses as much as digits as its factorization.

14808987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984 (or 7975 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 14808987 is about 3848.2446647790. The cubic root of 14808987 is about 245.5698909055.

The spelling of 14808987 in words is "fourteen million, eight hundred eight thousand, nine hundred eighty-seven".

Divisors: 1 3 9 23 27 69 81 207 621 1863 7949 23847 71541 182827 214623 548481 643869 1645443 4936329 14808987