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23112816841 = 1520292
BaseRepresentation
bin10101100001101000…
…011001100011001001
32012122202211202012101
4111201220121203021
5334313340114331
614341243513401
71445520462442
oct254150314311
965582752171
1023112816841
119890645424
124590528861
13224456c6aa
1411938982c9
15904197061
hex561a198c9

23112816841 has 3 divisors (see below), whose sum is σ = 23112968871. Its totient is φ = 23112664812.

The previous prime is 23112816821. The next prime is 23112816851. The reversal of 23112816841 is 14861821132.

The square root of 23112816841 is 152029.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 14828176441 + 8284640400 = 121771^2 + 91020^2 .

It is not a de Polignac number, because 23112816841 - 217 = 23112685769 is a prime.

It is a super-2 number, since 2×231128168412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23112816841.

It is not an unprimeable number, because it can be changed into a prime (23112816821) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76015 + ... + 228043.

It is an arithmetic number, because the mean of its divisors is an integer number (7704322957).

Almost surely, 223112816841 is an apocalyptic number.

23112816841 is the 152029-th square number.

23112816841 is the 76015-th centered octagonal number.

It is an amenable number.

23112816841 is a deficient number, since it is larger than the sum of its proper divisors (152030).

23112816841 is an frugal number, since it uses more digits than its factorization.

23112816841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304058 (or 152029 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The spelling of 23112816841 in words is "twenty-three billion, one hundred twelve million, eight hundred sixteen thousand, eight hundred forty-one".

Divisors: 1 152029 23112816841