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118642970 = 2523515839
BaseRepresentation
bin1110001001001…
…01100100011010
322021020200120002
413010211210122
5220333033340
615434533002
72640306605
oct704454432
9267220502
10118642970
1160a75246
1233897162
131b770354
1411a8533c
15a638715
hex712591a

118642970 has 16 divisors (see below), whose sum is σ = 222842880. Its totient is φ = 45393744.

The previous prime is 118642969. The next prime is 118642999. The reversal of 118642970 is 79246811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257690 + ... + 258149.

It is an arithmetic number, because the mean of its divisors is an integer number (13927680).

Almost surely, 2118642970 is an apocalyptic number.

118642970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118642970 is a deficient number, since it is larger than the sum of its proper divisors (104199910).

118642970 is a wasteful number, since it uses less digits than its factorization.

118642970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515869.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 118642970 is about 10892.3353786045. The cubic root of 118642970 is about 491.3760708662.

The spelling of 118642970 in words is "one hundred eighteen million, six hundred forty-two thousand, nine hundred seventy".

Divisors: 1 2 5 10 23 46 115 230 515839 1031678 2579195 5158390 11864297 23728594 59321485 118642970