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100238716180 = 2255011935809
BaseRepresentation
bin101110101011010110…
…0010110110100010100
3100120201210211101021201
41131112230112310110
53120242102404210
6114014331322244
710146003013021
oct1352654266424
9316653741251
10100238716180
11395691620a9
12175158b0384
1395b6101115
144bcca40548
15291a19053a
hex1756b16d14

100238716180 has 12 divisors (see below), whose sum is σ = 210501304020. Its totient is φ = 40095486464.

The previous prime is 100238716153. The next prime is 100238716181. The reversal of 100238716180 is 81617832001.

It can be written as a sum of positive squares in 2 ways, for example, as 24927988996 + 75310727184 = 157886^2 + 274428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100238716181) by changing a digit.

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, 2505967885 + ... + 2505967924.

It is an arithmetic number, because the mean of its divisors is an integer number (17541775335).

Almost surely, 2100238716180 is an apocalyptic number.

100238716180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100238716180 is an abundant number, since it is smaller than the sum of its proper divisors (110262587840).

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

100238716180 is a wasteful number, since it uses less digits than its factorization.

100238716180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011935818 (or 5011935816 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 100238716180 in words is "one hundred billion, two hundred thirty-eight million, seven hundred sixteen thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 5011935809 10023871618 20047743236 25059679045 50119358090 100238716180