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23212201112020 = 2251160610055601
BaseRepresentation
bin1010100011100100000110…
…00000000111000111010100
310001012001202012120011210001
411101302003000013013110
511020302041441041040
6121211312111541044
74614011660665114
oct521620300070724
9101161665504701
1023212201112020
11743a26a428a68
12272a81b22a784
13cc4b93b50acb
145a3695845044
152a3c08c9859a
hex151c830071d4

23212201112020 has 12 divisors (see below), whose sum is σ = 48745622335284. Its totient is φ = 9284880444800.

The previous prime is 23212201112017. The next prime is 23212201112053. The reversal of 23212201112020 is 2021110221232.

It can be written as a sum of positive squares in 2 ways, for example, as 5513789637316 + 17698411474704 = 2348146^2 + 4206948^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580305027781 + ... + 580305027820.

It is an arithmetic number, because the mean of its divisors is an integer number (4062135194607).

Almost surely, 223212201112020 is an apocalyptic number.

23212201112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23212201112020 is an abundant number, since it is smaller than the sum of its proper divisors (25533421223264).

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

23212201112020 is a wasteful number, since it uses less digits than its factorization.

23212201112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160610055610 (or 1160610055608 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 23212201112020 its reverse (2021110221232), we get a palindrome (25233311333252).

The spelling of 23212201112020 in words is "twenty-three trillion, two hundred twelve billion, two hundred one million, one hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 1160610055601 2321220111202 4642440222404 5803050278005 11606100556010 23212201112020