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118136080 = 2451476701
BaseRepresentation
bin1110000101010…
…01110100010000
322020021221020101
413002221310100
5220220323310
615420022144
72633066026
oct702516420
9266257211
10118136080
1160759427
1233691954
131b62370a
1411992716
15a58843a
hex70a9d10

118136080 has 20 divisors (see below), whose sum is σ = 274666572. Its totient is φ = 47254400.

The previous prime is 118136069. The next prime is 118136101. The reversal of 118136080 is 80631811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35617024 + 82519056 = 5968^2 + 9084^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1181360802 = 27912266795532800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738271 + ... + 738430.

Almost surely, 2118136080 is an apocalyptic number.

118136080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118136080 is an abundant number, since it is smaller than the sum of its proper divisors (156530492).

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

118136080 is a wasteful number, since it uses less digits than its factorization.

118136080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476714 (or 1476708 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 118136080 is about 10869.0422761161. The cubic root of 118136080 is about 490.6752871766.

Adding to 118136080 its reverse (80631811), we get a palindrome (198767891).

The spelling of 118136080 in words is "one hundred eighteen million, one hundred thirty-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1476701 2953402 5906804 7383505 11813608 14767010 23627216 29534020 59068040 118136080