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108818851212 = 22323022745867
BaseRepresentation
bin110010101011000011…
…0111110010110001100
3101101212202212101211200
41211112012332112030
53240330111214322
6121553553345500
710601426654661
oct1452606762614
9341782771750
10108818851212
114217144a595
121910b268290
13a3528a5cb6
1453a439da68
152c6d5828ac
hex19561be58c

108818851212 has 18 divisors (see below), whose sum is σ = 275069873988. Its totient is φ = 36272950392.

The previous prime is 108818851189. The next prime is 108818851277. The reversal of 108818851212 is 212158818801.

It is a happy number.

108818851212 is a `hidden beast` number, since 108 + 8 + 18 + 8 + 512 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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, 1511372898 + ... + 1511372969.

It is an arithmetic number, because the mean of its divisors is an integer number (15281659666).

Almost surely, 2108818851212 is an apocalyptic number.

108818851212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

108818851212 is an abundant number, since it is smaller than the sum of its proper divisors (166251022776).

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

108818851212 is a wasteful number, since it uses less digits than its factorization.

108818851212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022745877 (or 3022745872 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 45.

The spelling of 108818851212 in words is "one hundred eight billion, eight hundred eighteen million, eight hundred fifty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 3022745867 6045491734 9068237601 12090983468 18136475202 27204712803 36272950404 54409425606 108818851212