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100031332020 = 22351667188867
BaseRepresentation
bin101110100101001010…
…1001111111010110100
3100120012100121011200220
41131022111033322310
53114331010111040
6113542002334340
710140604202334
oct1351225177264
9316170534626
10100031332020
1139472096334
121747835a3b0
13958215cab9
144bad2990c4
152906d782d0
hex174a54feb4

100031332020 has 24 divisors (see below), whose sum is σ = 280087729824. Its totient is φ = 26675021856.

The previous prime is 100031331989. The next prime is 100031332081. The reversal of 100031332020 is 20233130001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833594374 + ... + 833594493.

It is an arithmetic number, because the mean of its divisors is an integer number (11670322076).

Almost surely, 2100031332020 is an apocalyptic number.

100031332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100031332020 is an abundant number, since it is smaller than the sum of its proper divisors (180056397804).

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

100031332020 is a wasteful number, since it uses less digits than its factorization.

100031332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667188879 (or 1667188877 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 100031332020 its reverse (20233130001), we get a palindrome (120264462021).

The spelling of 100031332020 in words is "one hundred billion, thirty-one million, three hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1667188867 3334377734 5001566601 6668755468 8335944335 10003133202 16671888670 20006266404 25007833005 33343777340 50015666010 100031332020