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14878985 = 511270527
BaseRepresentation
bin111000110000…
…100100001001
31000222221010112
4320300210021
512302111420
61250524105
7240316652
oct70604411
930887115
1014878985
118442890
124b96635
13310c544
141d94529
15148d8c5
hexe30909

14878985 has 8 divisors (see below), whose sum is σ = 19478016. Its totient is φ = 10821040.

The previous prime is 14878909. The next prime is 14878987. The reversal of 14878985 is 58987841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-14878985 is a prime.

It is a super-3 number, since 3×148789853 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14878987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135209 + ... + 135318.

It is an arithmetic number, because the mean of its divisors is an integer number (2434752).

Almost surely, 214878985 is an apocalyptic number.

It is an amenable number.

14878985 is a deficient number, since it is larger than the sum of its proper divisors (4599031).

14878985 is a wasteful number, since it uses less digits than its factorization.

14878985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270543.

The product of its digits is 645120, while the sum is 50.

The square root of 14878985 is about 3857.3287389073. The cubic root of 14878985 is about 245.9561966205.

The spelling of 14878985 in words is "fourteen million, eight hundred seventy-eight thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 270527 1352635 2975797 14878985