Search a number
-
+
231112112000 = 27537111491259
BaseRepresentation
bin1101011100111101011…
…0101111011110000000
3211002112121012201201212
43113033112233132000
512241304200041000
6254101010345252
722461113352620
oct3271726573600
9732477181655
10231112112000
118a017842460
123895ab8b228
1318a41c15bc3
14b2860dc880
156029a27c35
hex35cf5af780

231112112000 has 512 divisors, whose sum is σ = 721768320000. Its totient is φ = 71494656000.

The previous prime is 231112111949. The next prime is 231112112041. The reversal of 231112112000 is 211211132.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183567371 + ... + 183568629.

It is an arithmetic number, because the mean of its divisors is an integer number (1409703750).

Almost surely, 2231112112000 is an apocalyptic number.

231112112000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231112112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360884160000).

231112112000 is an abundant number, since it is smaller than the sum of its proper divisors (490656208000).

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

231112112000 is a wasteful number, since it uses less digits than its factorization.

231112112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 231112112000 its reverse (211211132), we get a palindrome (231323323132).

The spelling of 231112112000 in words is "two hundred thirty-one billion, one hundred twelve million, one hundred twelve thousand".