Search a number
-
+
23163272 = 2311223929
BaseRepresentation
bin101100001011…
…1000110001000
31121120211000222
41120113012020
521412211042
62144245212
7400612256
oct130270610
947524028
1023163272
1112090a00
127910808
134a501a2
14310d5d6
1520782d2
hex1617188

23163272 has 24 divisors (see below), whose sum is σ = 47740350. Its totient is φ = 10528320.

The previous prime is 23163271. The next prime is 23163311. The reversal of 23163272 is 27236132.

It can be written as a sum of positive squares in only one way, i.e., 18028516 + 5134756 = 4246^2 + 2266^2 .

It is not an unprimeable number, because it can be changed into a prime (23163271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10997 + ... + 12932.

Almost surely, 223163272 is an apocalyptic number.

23163272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23163272 is an abundant number, since it is smaller than the sum of its proper divisors (24577078).

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

23163272 is a wasteful number, since it uses less digits than its factorization.

23163272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23957 (or 23942 counting only the distinct ones).

The product of its digits is 3024, while the sum is 26.

The square root of 23163272 is about 4812.8237033991. The cubic root of 23163272 is about 285.0580450154.

The spelling of 23163272 in words is "twenty-three million, one hundred sixty-three thousand, two hundred seventy-two".

Divisors: 1 2 4 8 11 22 44 88 121 242 484 968 23929 47858 95716 191432 263219 526438 1052876 2105752 2895409 5790818 11581636 23163272