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23020253 = 375571117
BaseRepresentation
bin101011111010…
…0001011011101
31121022112211222
41113310023131
521343122003
62141223125
7366445304
oct127641335
947275758
1023020253
1111aa3503
127861aa5
134a00069
1430b343b
15204ac38
hex15f42dd

23020253 has 8 divisors (see below), whose sum is σ = 23706072. Its totient is φ = 22337856.

The previous prime is 23020201. The next prime is 23020273. The reversal of 23020253 is 35202032.

It can be written as a sum of positive squares in 4 ways, for example, as 190969 + 22829284 = 437^2 + 4778^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23020253 - 210 = 23019229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20051 + ... + 21167.

It is an arithmetic number, because the mean of its divisors is an integer number (2963259).

Almost surely, 223020253 is an apocalyptic number.

It is an amenable number.

23020253 is a deficient number, since it is larger than the sum of its proper divisors (685819).

23020253 is a wasteful number, since it uses less digits than its factorization.

23020253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 23020253 is about 4797.9425798982. The cubic root of 23020253 is about 284.4701471740.

Adding to 23020253 its reverse (35202032), we get a palindrome (58222285).

The spelling of 23020253 in words is "twenty-three million, twenty thousand, two hundred fifty-three".

Divisors: 1 37 557 1117 20609 41329 622169 23020253