Search a number
-
+
23031234 = 2322355631
BaseRepresentation
bin101011111011…
…0110111000010
31121100002220200
41113312313002
521343444414
62141350030
7366522312
oct127666702
947302820
1023031234
1112000786
127868316
134a05065
1430b7442
15204e109
hex15f6dc2

23031234 has 24 divisors (see below), whose sum is σ = 52071552. Its totient is φ = 7343160.

The previous prime is 23031227. The next prime is 23031247. The reversal of 23031234 is 43213032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27402 + ... + 28229.

It is an arithmetic number, because the mean of its divisors is an integer number (2169648).

Almost surely, 223031234 is an apocalyptic number.

23031234 is an abundant number, since it is smaller than the sum of its proper divisors (29040318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23031234 is a wasteful number, since it uses less digits than its factorization.

23031234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55662 (or 55659 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23031234 is about 4799.0867881296. The cubic root of 23031234 is about 284.5153721348.

Adding to 23031234 its reverse (43213032), we get a palindrome (66244266).

The spelling of 23031234 in words is "twenty-three million, thirty-one thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 55631 111262 166893 333786 500679 1001358 1279513 2559026 3838539 7677078 11515617 23031234