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118608138900 = 223252131786821
BaseRepresentation
bin110111001110110011…
…0001001001010010100
3102100011000010202000100
41232131212021022110
53420402140421100
6130253212014100
711366135355216
oct1563546111224
9370130122010
10118608138900
1146335225299
121aba1761330
13b252a28314
145a525525b6
153142bbc400
hex1b9d989294

118608138900 has 54 divisors (see below), whose sum is σ = 371770624862. Its totient is φ = 31628836800.

The previous prime is 118608138893. The next prime is 118608138911. The reversal of 118608138900 is 9831806811.

118608138900 is a `hidden beast` number, since 1 + 1 + 8 + 608 + 1 + 38 + 9 + 0 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 16466535684 + 102141603216 = 128322^2 + 319596^2 .

It is a super-2 number, since 2×1186081389002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 65892511 + ... + 65894310.

Almost surely, 2118608138900 is an apocalyptic number.

118608138900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118608138900 is an abundant number, since it is smaller than the sum of its proper divisors (253162485962).

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

118608138900 is a wasteful number, since it uses less digits than its factorization.

118608138900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131786841 (or 131786831 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 118608138900 in words is "one hundred eighteen billion, six hundred eight million, one hundred thirty-eight thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 131786821 263573642 395360463 527147284 658934105 790720926 1186081389 1317868210 1581441852 1976802315 2372162778 2635736420 3294670525 3953604630 4744325556 5930406945 6589341050 7907209260 9884011575 11860813890 13178682100 19768023150 23721627780 29652034725 39536046300 59304069450 118608138900