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100919292020 = 2255045964601
BaseRepresentation
bin101110111111101000…
…0100011000001110100
3100122111020110012211022
41131333100203001310
53123140314321040
6114210042400312
710201605554111
oct1357720430164
9318436405738
10100919292020
1139888344878
1217685800098
1396940cc211
144c5519d908
152959cc76b5
hex177f423074

100919292020 has 12 divisors (see below), whose sum is σ = 211930513284. Its totient is φ = 40367716800.

The previous prime is 100919291987. The next prime is 100919292059. The reversal of 100919292020 is 20292919001.

It can be written as a sum of positive squares in 2 ways, for example, as 35847363556 + 65071928464 = 189334^2 + 255092^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2522982281 + ... + 2522982320.

It is an arithmetic number, because the mean of its divisors is an integer number (17660876107).

Almost surely, 2100919292020 is an apocalyptic number.

100919292020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100919292020 is an abundant number, since it is smaller than the sum of its proper divisors (111011221264).

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

100919292020 is a wasteful number, since it uses less digits than its factorization.

100919292020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045964610 (or 5045964608 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 100919292020 in words is "one hundred billion, nine hundred nineteen million, two hundred ninety-two thousand, twenty".

Divisors: 1 2 4 5 10 20 5045964601 10091929202 20183858404 25229823005 50459646010 100919292020