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118968920 = 2357424889
BaseRepresentation
bin1110001011101…
…01001001011000
322021212020200022
413011311021120
5220424001140
615445530012
72643135110
oct705651130
9267766608
10118968920
1161178124
1233a13908
131b855815
1411b2c040
15a6a00b5
hex7175258

118968920 has 32 divisors (see below), whose sum is σ = 305920800. Its totient is φ = 40789248.

The previous prime is 118968911. The next prime is 118968989. The reversal of 118968920 is 29869811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212165 + ... + 212724.

It is an arithmetic number, because the mean of its divisors is an integer number (9560025).

Almost surely, 2118968920 is an apocalyptic number.

118968920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118968920 is an abundant number, since it is smaller than the sum of its proper divisors (186951880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118968920 is a wasteful number, since it uses less digits than its factorization.

118968920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424907 (or 424903 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 118968920 is about 10907.2874721445. The cubic root of 118968920 is about 491.8256482267.

The spelling of 118968920 in words is "one hundred eighteen million, nine hundred sixty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 424889 849778 1699556 2124445 2974223 3399112 4248890 5948446 8497780 11896892 14871115 16995560 23793784 29742230 59484460 118968920