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31233122122 = 215799890159
BaseRepresentation
bin11101000101101000…
…111001111101001010
32222121200121222220211
4131011220321331022
51002431134401442
622203122111334
72153662105036
oct350550717512
988550558824
1031233122122
1112278312a24
126077aab54a
132c399b5667
14172411b1c6
15c2c008617
hex745a39f4a

31233122122 has 8 divisors (see below), whose sum is σ = 46879358400. Its totient is φ = 15606669324.

The previous prime is 31233122071. The next prime is 31233122161. The reversal of 31233122122 is 22122133213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31233122093 and 31233122102.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4941922 + ... + 4948237.

It is an arithmetic number, because the mean of its divisors is an integer number (5859919800).

Almost surely, 231233122122 is an apocalyptic number.

31233122122 is a deficient number, since it is larger than the sum of its proper divisors (15646236278).

31233122122 is a wasteful number, since it uses less digits than its factorization.

31233122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9891740.

The product of its digits is 864, while the sum is 22.

Adding to 31233122122 its reverse (22122133213), we get a palindrome (53355255335).

The spelling of 31233122122 in words is "thirty-one billion, two hundred thirty-three million, one hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 1579 3158 9890159 19780318 15616561061 31233122122