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108494927892 = 223213231826769
BaseRepresentation
bin110010100001011001…
…1010011100000010100
3101101001012100101120200
41211002303103200110
53234144200143032
6121501502500500
710560414446061
oct1450263234024
9341035311520
10108494927892
114201561616a
121903a894730
13a3007500b0
14537335dc68
152c4edea47c
hex1942cd3814

108494927892 has 36 divisors (see below), whose sum is σ = 295347304980. Its totient is φ = 33383054592.

The previous prime is 108494927831. The next prime is 108494927903. The reversal of 108494927892 is 298729494801.

108494927892 is a `hidden beast` number, since 10 + 8 + 49 + 492 + 7 + 8 + 92 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 69145857936 + 39349069956 = 262956^2 + 198366^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1084949278922 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115912917 + ... + 115913852.

It is an arithmetic number, because the mean of its divisors is an integer number (8204091805).

Almost surely, 2108494927892 is an apocalyptic number.

108494927892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

108494927892 is an abundant number, since it is smaller than the sum of its proper divisors (186852377088).

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

108494927892 is a wasteful number, since it uses less digits than its factorization.

108494927892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231826792 (or 231826787 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 108494927892 in words is "one hundred eight billion, four hundred ninety-four million, nine hundred twenty-seven thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 231826769 463653538 695480307 927307076 1390960614 2086440921 2781921228 3013747997 4172881842 6027495994 8345763684 9041243991 12054991988 18082487982 27123731973 36164975964 54247463946 108494927892