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23026681 = 36762743
BaseRepresentation
bin101011111010…
…1101111111001
31121022212200001
41113311233321
521343323211
62141313001
7366503116
oct127655771
947285601
1023026681
1111aa8317
127865761
134a02c72
1430b590d
15204cac1
hex15f5bf9

23026681 has 4 divisors (see below), whose sum is σ = 23089792. Its totient is φ = 22963572.

The previous prime is 23026631. The next prime is 23026699. The reversal of 23026681 is 18662032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23026681 - 215 = 22993913 is a prime.

It is a super-2 number, since 2×230266812 = 1060456075751522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23026621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31005 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (5772448).

Almost surely, 223026681 is an apocalyptic number.

It is an amenable number.

23026681 is a deficient number, since it is larger than the sum of its proper divisors (63111).

23026681 is an equidigital number, since it uses as much as digits as its factorization.

23026681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63110.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 23026681 is about 4798.6124036017. The cubic root of 23026681 is about 284.4966224685.

The spelling of 23026681 in words is "twenty-three million, twenty-six thousand, six hundred eighty-one".

Divisors: 1 367 62743 23026681