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118457102440 = 235544192
BaseRepresentation
bin110111001010010010…
…1111111000001101000
3102022202110221021221101
41232110211333001220
53420100004234230
6130230214451144
711362322520535
oct1562445770150
9368673837841
10118457102440
1146267a45376
121ab5b063ab4
13b22a655731
145a3a477d8c
1531347d5aca
hex1b9497f068

118457102440 has 24 divisors (see below), whose sum is σ = 266533378290. Its totient is φ = 47381970272.

The previous prime is 118457102437. The next prime is 118457102503. The reversal of 118457102440 is 44201754811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 106611392196 + 11845710244 = 326514^2 + 108838^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 118457102440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2149551 + ... + 2203969.

Almost surely, 2118457102440 is an apocalyptic number.

118457102440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118457102440 is an abundant number, since it is smaller than the sum of its proper divisors (148076275850).

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

118457102440 is an frugal number, since it uses more digits than its factorization.

118457102440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108849 (or 54426 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 118457102440 in words is "one hundred eighteen billion, four hundred fifty-seven million, one hundred two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 54419 108838 217676 272095 435352 544190 1088380 2176760 2961427561 5922855122 11845710244 14807137805 23691420488 29614275610 59228551220 118457102440