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2131300032020 = 225106565001601
BaseRepresentation
bin11111000000111011011…
…000011001111000010100
321112202020222000120020222
4133000323120121320110
5234404400302011040
64311034500213512
7306660413235155
oct37007330317024
97482228016228
102131300032020
1175197433a245
122a508809a298
13125c99885603
147522688792c
153a69003abb5
hex1f03b619e14

2131300032020 has 12 divisors (see below), whose sum is σ = 4475730067284. Its totient is φ = 852520012800.

The previous prime is 2131300032011. The next prime is 2131300032031. The reversal of 2131300032020 is 202300031312.

It can be written as a sum of positive squares in 2 ways, for example, as 1549930381444 + 581369650576 = 1244962^2 + 762476^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2131300032020.

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, 53282500781 + ... + 53282500820.

It is an arithmetic number, because the mean of its divisors is an integer number (372977505607).

Almost surely, 22131300032020 is an apocalyptic number.

2131300032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131300032020 is an abundant number, since it is smaller than the sum of its proper divisors (2344430035264).

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

2131300032020 is a wasteful number, since it uses less digits than its factorization.

2131300032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106565001610 (or 106565001608 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 2131300032020 its reverse (202300031312), we get a palindrome (2333600063332).

The spelling of 2131300032020 in words is "two trillion, one hundred thirty-one billion, three hundred million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 106565001601 213130003202 426260006404 532825008005 1065650016010 2131300032020