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23045231 = 112095021
BaseRepresentation
bin101011111101…
…0010001101111
31121100211010002
41113322101233
521344421411
62141534515
7366611156
oct127722157
947324102
1023045231
1112010250
12787443b
134a0b541
1430bc59d
15205333b
hex15fa46f

23045231 has 4 divisors (see below), whose sum is σ = 25140264. Its totient is φ = 20950200.

The previous prime is 23045221. The next prime is 23045237. The reversal of 23045231 is 13254032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23045231 - 214 = 23028847 is a prime.

It is a super-2 number, since 2×230452312 = 1062165343686722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045237) 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, 1047500 + ... + 1047521.

It is an arithmetic number, because the mean of its divisors is an integer number (6285066).

Almost surely, 223045231 is an apocalyptic number.

23045231 is a deficient number, since it is larger than the sum of its proper divisors (2095033).

23045231 is a wasteful number, since it uses less digits than its factorization.

23045231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095032.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23045231 is about 4800.5448649086. The cubic root of 23045231 is about 284.5729975779.

Adding to 23045231 its reverse (13254032), we get a palindrome (36299263).

The spelling of 23045231 in words is "twenty-three million, forty-five thousand, two hundred thirty-one".

Divisors: 1 11 2095021 23045231