Search a number
-
+
31232442342 = 2342731218209
BaseRepresentation
bin11101000101100110…
…010011111111100110
32222121122100110102210
4131011212103333212
51002431001123332
622203055344250
72153653244133
oct350546237746
988548313383
1031232442342
1112277999222
126077822086
132c3980811a
141723dc158a
15c2be21ecc
hex745993fe6

31232442342 has 16 divisors (see below), whose sum is σ = 62479554480. Its totient is φ = 10408369152.

The previous prime is 31232442299. The next prime is 31232442379. The reversal of 31232442342 is 24324423213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583467 + ... + 634742.

It is an arithmetic number, because the mean of its divisors is an integer number (3904972155).

Almost surely, 231232442342 is an apocalyptic number.

31232442342 is an abundant number, since it is smaller than the sum of its proper divisors (31247112138).

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

31232442342 is a wasteful number, since it uses less digits than its factorization.

31232442342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222487.

The product of its digits is 27648, while the sum is 30.

Adding to 31232442342 its reverse (24324423213), we get a palindrome (55556865555).

The spelling of 31232442342 in words is "thirty-one billion, two hundred thirty-two million, four hundred forty-two thousand, three hundred forty-two".

Divisors: 1 2 3 6 4273 8546 12819 25638 1218209 2436418 3654627 7309254 5205407057 10410814114 15616221171 31232442342