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108900499220 = 2255445024961
BaseRepresentation
bin110010101101011111…
…0011011111100010100
3101102002110111112211222
41211122332123330110
53241012011433340
6122010031345512
710603440653552
oct1453276337424
9342073445758
10108900499220
1142203546987
1219132682298
13a366792526
1453b1174bd2
152c7580e8b5
hex195af9bf14

108900499220 has 12 divisors (see below), whose sum is σ = 228691048404. Its totient is φ = 43560199680.

The previous prime is 108900499151. The next prime is 108900499249. The reversal of 108900499220 is 22994009801.

It can be written as a sum of positive squares in 2 ways, for example, as 29035478404 + 79865020816 = 170398^2 + 282604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2722512461 + ... + 2722512500.

It is an arithmetic number, because the mean of its divisors is an integer number (19057587367).

Almost surely, 2108900499220 is an apocalyptic number.

108900499220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108900499220 is an abundant number, since it is smaller than the sum of its proper divisors (119790549184).

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

108900499220 is a wasteful number, since it uses less digits than its factorization.

108900499220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445024970 (or 5445024968 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 108900499220 in words is "one hundred eight billion, nine hundred million, four hundred ninety-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5445024961 10890049922 21780099844 27225124805 54450249610 108900499220