Search a number
-
+
231022343200 = 255211178871741
BaseRepresentation
bin1101011100101000000…
…0010011010000100000
3211002022100022000002111
43113022000103100200
512241113204440300
6254044042325104
722455643342165
oct3271200232040
9732270260074
10231022343200
1189a810a9870
1238934ab9794
1318a2944527c
14b27821206c
156021be49ba
hex35ca013420

231022343200 has 288 divisors, whose sum is σ = 652554983808. Its totient is φ = 78931968000.

The previous prime is 231022343171. The next prime is 231022343221. The reversal of 231022343200 is 2343220132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132694330 + ... + 132696070.

It is an arithmetic number, because the mean of its divisors is an integer number (2265815916).

Almost surely, 2231022343200 is an apocalyptic number.

231022343200 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 231022343200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326277491904).

231022343200 is an abundant number, since it is smaller than the sum of its proper divisors (421532640608).

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

231022343200 is a wasteful number, since it uses less digits than its factorization.

231022343200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 231022343200 its reverse (2343220132), we get a palindrome (233365563332).

The spelling of 231022343200 in words is "two hundred thirty-one billion, twenty-two million, three hundred forty-three thousand, two hundred".