Search a number
-
+
23034531 = 313245433
BaseRepresentation
bin101011111011…
…1101010100011
31121100021102210
41113313222203
521344101111
62141413203
7366535032
oct127675243
947307383
1023034531
1112003203
12786a203
134a06700
1430b8719
1520500a6
hex15f7aa3

23034531 has 12 divisors (see below), whose sum is σ = 33257688. Its totient is φ = 14174784.

The previous prime is 23034511. The next prime is 23034551. The reversal of 23034531 is 13543032.

It is an interprime number because it is at equal distance from previous prime (23034511) and next prime (23034551).

It is not a de Polignac number, because 23034531 - 25 = 23034499 is a prime.

It is a super-2 number, since 2×230345312 = 1061179236779922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23034498 and 23034507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23034511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22210 + ... + 23223.

It is an arithmetic number, because the mean of its divisors is an integer number (2771474).

Almost surely, 223034531 is an apocalyptic number.

23034531 is a deficient number, since it is larger than the sum of its proper divisors (10223157).

23034531 is a wasteful number, since it uses less digits than its factorization.

23034531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45462 (or 45449 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23034531 is about 4799.4302786893. The cubic root of 23034531 is about 284.5289479369.

Adding to 23034531 its reverse (13543032), we get a palindrome (36577563).

The spelling of 23034531 in words is "twenty-three million, thirty-four thousand, five hundred thirty-one".

Divisors: 1 3 13 39 169 507 45433 136299 590629 1771887 7678177 23034531