Search a number
-
+
252331112 = 23116742797
BaseRepresentation
bin11110000101001…
…00010001101000
3122120210202012202
433002210101220
51004044043422
641012155332
76152531135
oct1702442150
9576722182
10252331112
1111a486110
1270608b48
134037a767
142572558c
1517244b92
hexf0a4468

252331112 has 32 divisors (see below), whose sum is σ = 523847520. Its totient is φ = 112981440.

The previous prime is 252331087. The next prime is 252331133. The reversal of 252331112 is 211133252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15503 + ... + 27294.

It is an arithmetic number, because the mean of its divisors is an integer number (16370235).

Almost surely, 2252331112 is an apocalyptic number.

252331112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

252331112 is an abundant number, since it is smaller than the sum of its proper divisors (271516408).

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

252331112 is a wasteful number, since it uses less digits than its factorization.

252331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42881 (or 42877 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 252331112 is about 15884.9334905753. The cubic root of 252331112 is about 631.9124818726.

Adding to 252331112 its reverse (211133252), we get a palindrome (463464364).

The spelling of 252331112 in words is "two hundred fifty-two million, three hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 67 88 134 268 536 737 1474 2948 5896 42797 85594 171188 342376 470767 941534 1883068 2867399 3766136 5734798 11469596 22939192 31541389 63082778 126165556 252331112