Search a number
-
+
23036231 = 76130271
BaseRepresentation
bin101011111100…
…0000101000111
31121100100202202
41113320011013
521344124411
62141425115
7366543011
oct127700507
947310682
1023036231
1112004509
12786b19b
134a0740a
1430b91b1
15205083b
hex15f8147

23036231 has 4 divisors (see below), whose sum is σ = 23067264. Its totient is φ = 23005200.

The previous prime is 23036213. The next prime is 23036249. The reversal of 23036231 is 13263032.

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

It is an interprime number because it is at equal distance from previous prime (23036213) and next prime (23036249).

It is a cyclic number.

It is not a de Polignac number, because 23036231 - 214 = 23019847 is a prime.

It is a super-2 number, since 2×230362312 = 1061335877370722, 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 (23036281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14375 + ... + 15896.

It is an arithmetic number, because the mean of its divisors is an integer number (5766816).

Almost surely, 223036231 is an apocalyptic number.

23036231 is a deficient number, since it is larger than the sum of its proper divisors (31033).

23036231 is an equidigital number, since it uses as much as digits as its factorization.

23036231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31032.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 23036231 is about 4799.6073797760. The cubic root of 23036231 is about 284.5359473894.

Adding to 23036231 its reverse (13263032), we get a palindrome (36299263).

The spelling of 23036231 in words is "twenty-three million, thirty-six thousand, two hundred thirty-one".

Divisors: 1 761 30271 23036231