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23232012213220 = 2251161600610661
BaseRepresentation
bin1010100100001000111111…
…10101011101101111100100
310001020221212212122101120221
411102010133311131233210
511021113130111310340
6121224350012334124
74615312630401466
oct522043765355744
9101227785571527
1023232012213220
117447706267578
122732629a74344
13cc6a0035a2b5
145a46149d8136
152a44b814e44a
hex15211fd5dbe4

23232012213220 has 12 divisors (see below), whose sum is σ = 48787225647804. Its totient is φ = 9292804885280.

The previous prime is 23232012213173. The next prime is 23232012213247. The reversal of 23232012213220 is 2231221023232.

It can be written as a sum of positive squares in 2 ways, for example, as 14992678273444 + 8239333939776 = 3872038^2 + 2870424^2 .

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, 580800305311 + ... + 580800305350.

It is an arithmetic number, because the mean of its divisors is an integer number (4065602137317).

Almost surely, 223232012213220 is an apocalyptic number.

23232012213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23232012213220 is an abundant number, since it is smaller than the sum of its proper divisors (25555213434584).

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

23232012213220 is a wasteful number, since it uses less digits than its factorization.

23232012213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161600610670 (or 1161600610668 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23232012213220 its reverse (2231221023232), we get a palindrome (25463233236452).

The spelling of 23232012213220 in words is "twenty-three trillion, two hundred thirty-two billion, twelve million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1161600610661 2323201221322 4646402442644 5808003053305 11616006106610 23232012213220