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231332131032 = 23318153253253
BaseRepresentation
bin1101011101110001111…
…0000011000011011000
3211010002221012212002220
43113130132003003120
512242232011143112
6254134510224040
722466424445542
oct3273436030330
9733087185086
10231332131032
118a11aa58a72
1238a007b5020
1318a7868c192
14b2a7412692
15603ded898c
hex35dc7830d8

231332131032 has 32 divisors (see below), whose sum is σ = 581525533680. Its totient is φ = 76684682880.

The previous prime is 231332131027. The next prime is 231332131033. The reversal of 231332131032 is 230131233132.

231332131032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 231332130993 and 231332131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231332131033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26622283 + ... + 26630970.

Almost surely, 2231332131032 is an apocalyptic number.

It is an amenable number.

231332131032 is an abundant number, since it is smaller than the sum of its proper divisors (350193402648).

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

231332131032 is a wasteful number, since it uses less digits than its factorization.

231332131032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53253443 (or 53253439 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231332131032 its reverse (230131233132), we get a palindrome (461463364164).

The spelling of 231332131032 in words is "two hundred thirty-one billion, three hundred thirty-two million, one hundred thirty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 181 362 543 724 1086 1448 2172 4344 53253253 106506506 159759759 213013012 319519518 426026024 639039036 1278078072 9638838793 19277677586 28916516379 38555355172 57833032758 77110710344 115666065516 231332131032