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210231112112020 = 22510511555605601
BaseRepresentation
bin101111110011010000111110…
…110000100001011110010100
31000120100220020200002001011101
4233303100332300201132110
5210023411304200041040
62023042501205115444
762165460640345066
oct5763207660413624
91016326220061141
10210231112112020
1160a9357208983a
121b6b42460b8b84
13903c92a3302bc
1439cb350c51736
1519488d8a0a09a
hexbf343ec21794

210231112112020 has 12 divisors (see below), whose sum is σ = 441485335435284. Its totient is φ = 84092444844800.

The previous prime is 210231112111963. The next prime is 210231112112033. The reversal of 210231112112020 is 20211211132012.

It can be written as a sum of positive squares in 2 ways, for example, as 109654322787216 + 100576789324804 = 10471596^2 + 10028798^2 .

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, 5255777802781 + ... + 5255777802820.

It is an arithmetic number, because the mean of its divisors is an integer number (36790444619607).

Almost surely, 2210231112112020 is an apocalyptic number.

210231112112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210231112112020 is an abundant number, since it is smaller than the sum of its proper divisors (231254223323264).

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

210231112112020 is a wasteful number, since it uses less digits than its factorization.

210231112112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10511555605610 (or 10511555605608 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 210231112112020 its reverse (20211211132012), we get a palindrome (230442323244032).

The spelling of 210231112112020 in words is "two hundred ten trillion, two hundred thirty-one billion, one hundred twelve million, one hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 10511555605601 21023111211202 42046222422404 52557778028005 105115556056010 210231112112020