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118049242 = 21947157421
BaseRepresentation
bin1110000100101…
…00100111011010
322020010112010011
413002110213122
5220210033432
615414112134
72632254613
oct702244732
9266115104
10118049242
11606aa163
123364b64a
131b5c302c
141196cc0a
15a56c847
hex70949da

118049242 has 32 divisors (see below), whose sum is σ = 192026880. Its totient is φ = 54250560.

The previous prime is 118049237. The next prime is 118049251. The reversal of 118049242 is 242940811.

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 15 ways as a sum of consecutive naturals, for example, 280192 + ... + 280612.

It is an arithmetic number, because the mean of its divisors is an integer number (6000840).

Almost surely, 2118049242 is an apocalyptic number.

118049242 is a deficient number, since it is larger than the sum of its proper divisors (73977638).

118049242 is a wasteful number, since it uses less digits than its factorization.

118049242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 118049242 is about 10865.0468015559. The cubic root of 118049242 is about 490.5550312111. Note that the first 3 decimals are identical.

The spelling of 118049242 in words is "one hundred eighteen million, forty-nine thousand, two hundred forty-two".

Divisors: 1 2 19 38 47 94 157 314 421 842 893 1786 2983 5966 7379 7999 14758 15998 19787 39574 66097 132194 140201 280402 375953 751906 1255843 2511686 3106559 6213118 59024621 118049242