Search a number
-
+
31233321300 = 22352131794741
BaseRepresentation
bin11101000101101001…
…101010100101010100
32222121201000010010210
4131011221222211110
51002431212240200
622203130245420
72153663564526
oct350551524524
988551003123
1031233321300
1112278439635
126077b86870
132c39a5520c
14172416da16
15c2c047650
hex745a6a954

31233321300 has 72 divisors (see below), whose sum is σ = 91058359392. Its totient is φ = 8265296000.

The previous prime is 31233321299. The next prime is 31233321311. The reversal of 31233321300 is 312333213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358071 + ... + 436670.

It is an arithmetic number, because the mean of its divisors is an integer number (1264699436).

Almost surely, 231233321300 is an apocalyptic number.

31233321300 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31233321300 is an abundant number, since it is smaller than the sum of its proper divisors (59825038092).

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

31233321300 is a wasteful number, since it uses less digits than its factorization.

31233321300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794889 (or 794882 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31233321300 its reverse (312333213), we get a palindrome (31545654513).

31233321300 divided by its reverse (312333213) gives a square (100 = 102).

The spelling of 31233321300 in words is "thirty-one billion, two hundred thirty-three million, three hundred twenty-one thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 131 150 262 300 393 524 655 786 1310 1572 1965 2620 3275 3930 6550 7860 9825 13100 19650 39300 794741 1589482 2384223 3178964 3973705 4768446 7947410 9536892 11921115 15894820 19868525 23842230 39737050 47684460 59605575 79474100 104111071 119211150 208222142 238422300 312333213 416444284 520555355 624666426 1041110710 1249332852 1561666065 2082221420 2602776775 3123332130 5205553550 6246664260 7808330325 10411107100 15616660650 31233321300