Search a number
-
+
31322010234 = 239753817887
BaseRepresentation
bin11101001010111011…
…111111001001111010
32222211212212222111010
4131022323333021322
51003121413311414
622220015214350
72156121460044
oct351273771172
988755788433
1031322010234
1112313504979
1260a18173b6
132c52238488
141731c58a94
15c34c15959
hex74aeff27a

31322010234 has 16 divisors (see below), whose sum is σ = 63289836288. Its totient is φ = 10333034112.

The previous prime is 31322010233. The next prime is 31322010301. The reversal of 31322010234 is 43201022313.

It is a self number, because there is not a number n which added to its sum of digits gives 31322010234.

It is not an unprimeable number, because it can be changed into a prime (31322010233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26908362 + ... + 26909525.

It is an arithmetic number, because the mean of its divisors is an integer number (3955614768).

Almost surely, 231322010234 is an apocalyptic number.

31322010234 is an abundant number, since it is smaller than the sum of its proper divisors (31967826054).

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

31322010234 is a wasteful number, since it uses less digits than its factorization.

31322010234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53817989.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31322010234 its reverse (43201022313), we get a palindrome (74523032547).

The spelling of 31322010234 in words is "thirty-one billion, three hundred twenty-two million, ten thousand, two hundred thirty-four".

Divisors: 1 2 3 6 97 194 291 582 53817887 107635774 161453661 322907322 5220335039 10440670078 15661005117 31322010234