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103220232020 = 22517329832437
BaseRepresentation
bin110000000100001100…
…1111011111101010100
3100212102121002002010022
41200020121323331110
53142343334411040
6115230235444312
710312615332023
oct1401031737524
9325377062108
10103220232020
113a859148084
12180082b6698
13996ca13189
144dd29d48ba
152a41cd26b5
hex180867bf54

103220232020 has 24 divisors (see below), whose sum is σ = 218015456904. Its totient is φ = 41049431936.

The previous prime is 103220232007. The next prime is 103220232041. The reversal of 103220232020 is 20232022301.

It can be written as a sum of positive squares in 4 ways, for example, as 24147916816 + 79072315204 = 155396^2 + 281198^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103220232020.

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, 14912759 + ... + 14919678.

It is an arithmetic number, because the mean of its divisors is an integer number (9083977371).

Almost surely, 2103220232020 is an apocalyptic number.

103220232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103220232020 is an abundant number, since it is smaller than the sum of its proper divisors (114795224884).

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

103220232020 is a wasteful number, since it uses less digits than its factorization.

103220232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29832619 (or 29832617 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 103220232020 its reverse (20232022301), we get a palindrome (123452254321).

The spelling of 103220232020 in words is "one hundred three billion, two hundred twenty million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 29832437 59664874 119329748 149162185 298324370 596648740 5161011601 10322023202 20644046404 25805058005 51610116010 103220232020