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23020023 = 3131734721
BaseRepresentation
bin101011111010…
…0000111110111
31121022112112110
41113310013313
521343120043
62141222103
7366444525
oct127640767
947275473
1023020023
1111aa3314
127861933
1349ccc20
1430b3315
15204ab33
hex15f41f7

23020023 has 16 divisors (see below), whose sum is σ = 34999776. Its totient is φ = 13332480.

The previous prime is 23020013. The next prime is 23020051. The reversal of 23020023 is 32002032.

It is not a de Polignac number, because 23020023 - 26 = 23019959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23019990 and 23020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16698 + ... + 18023.

It is an arithmetic number, because the mean of its divisors is an integer number (2187486).

Almost surely, 223020023 is an apocalyptic number.

23020023 is a deficient number, since it is larger than the sum of its proper divisors (11979753).

23020023 is a wasteful number, since it uses less digits than its factorization.

23020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34754.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 23020023 is about 4797.9186112313. The cubic root of 23020023 is about 284.4691997712.

Adding to 23020023 its reverse (32002032), we get a palindrome (55022055).

Subtracting 23020023 from its reverse (32002032), we obtain a square (8982009 = 29972).

The spelling of 23020023 in words is "twenty-three million, twenty thousand, twenty-three".

Divisors: 1 3 13 17 39 51 221 663 34721 104163 451373 590257 1354119 1770771 7673341 23020023