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118992885 = 3511721169
BaseRepresentation
bin1110001011110…
…10111111110101
322021220110112220
413011322333311
5220430233020
615450232553
72643265014
oct705727765
9267813486
10118992885
1161194130
1233a25759
131b8636bb
1411b36a7b
15a6a7240
hex717aff5

118992885 has 16 divisors (see below), whose sum is σ = 207696960. Its totient is φ = 57693440.

The previous prime is 118992833. The next prime is 118992899. The reversal of 118992885 is 588299811.

It is not a de Polignac number, because 118992885 - 26 = 118992821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360420 + ... + 360749.

It is an arithmetic number, because the mean of its divisors is an integer number (12981060).

Almost surely, 2118992885 is an apocalyptic number.

118992885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118992885 is a deficient number, since it is larger than the sum of its proper divisors (88704075).

118992885 is a wasteful number, since it uses less digits than its factorization.

118992885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721188.

The product of its digits is 414720, while the sum is 51.

The square root of 118992885 is about 10908.3859942706. The cubic root of 118992885 is about 491.8586703256.

The spelling of 118992885 in words is "one hundred eighteen million, nine hundred ninety-two thousand, eight hundred eighty-five".

Divisors: 1 3 5 11 15 33 55 165 721169 2163507 3605845 7932859 10817535 23798577 39664295 118992885