Search a number
-
+
231132462 = 23113502007
BaseRepresentation
bin11011100011011…
…00110100101110
3121002220202010120
431301230310232
5433132214322
634533545410
75504410401
oct1561546456
9532822116
10231132462
11109517270
12654a5266
1338b67892
14229a7d38
1515458a5c
hexdc6cd2e

231132462 has 16 divisors (see below), whose sum is σ = 504289152. Its totient is φ = 70040120.

The previous prime is 231132449. The next prime is 231132463. The reversal of 231132462 is 264231132.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231132463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1750938 + ... + 1751069.

It is an arithmetic number, because the mean of its divisors is an integer number (31518072).

Almost surely, 2231132462 is an apocalyptic number.

231132462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231132462 is an abundant number, since it is smaller than the sum of its proper divisors (273156690).

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

231132462 is a wasteful number, since it uses less digits than its factorization.

231132462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502023.

The product of its digits is 1728, while the sum is 24.

The square root of 231132462 is about 15203.0412089161. The cubic root of 231132462 is about 613.6965028456.

Adding to 231132462 its reverse (264231132), we get a palindrome (495363594).

The spelling of 231132462 in words is "two hundred thirty-one million, one hundred thirty-two thousand, four hundred sixty-two".

Divisors: 1 2 3 6 11 22 33 66 3502007 7004014 10506021 21012042 38522077 77044154 115566231 231132462