Base | Representation |
---|---|
bin | 11101000101110001… |
… | …000000000011011101 |
3 | 2222121211121210221021 |
4 | 131011301000003131 |
5 | 1002432210304003 |
6 | 22203235404141 |
7 | 2154016124023 |
oct | 350561000335 |
9 | 88554553837 |
10 | 31235244253 |
11 | 12279532354 |
12 | 6078753651 |
13 | 2c3a279565 |
14 | 1724510713 |
15 | c2c2c72bd |
hex | 745c400dd |
31235244253 has 8 divisors (see below), whose sum is σ = 33074291520. Its totient is φ = 29396383680.
The previous prime is 31235244251. The next prime is 31235244269. The reversal of 31235244253 is 35244253213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31235244253 - 21 = 31235244251 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31235244251) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447168 + ... + 512278.
It is an arithmetic number, because the mean of its divisors is an integer number (4134286440).
Almost surely, 231235244253 is an apocalyptic number.
It is an amenable number.
31235244253 is a deficient number, since it is larger than the sum of its proper divisors (1839047267).
31235244253 is a wasteful number, since it uses less digits than its factorization.
31235244253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93347.
The product of its digits is 86400, while the sum is 34.
Adding to 31235244253 its reverse (35244253213), we get a palindrome (66479497466).
The spelling of 31235244253 in words is "thirty-one billion, two hundred thirty-five million, two hundred forty-four thousand, two hundred fifty-three".
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