Base | Representation |
---|---|
bin | 11101000101111110… |
… | …111000011110001101 |
3 | 2222122002110200122120 |
4 | 131011332320132031 |
5 | 1002434123230323 |
6 | 22203445403153 |
7 | 2154062061156 |
oct | 350576703615 |
9 | 88562420576 |
10 | 31238883213 |
11 | 1228059835a |
12 | 6079a094b9 |
13 | 2c3ac519a5 |
14 | 1724bba92d |
15 | c2c7955e3 |
hex | 745fb878d |
31238883213 has 8 divisors (see below), whose sum is σ = 41951498400. Its totient is φ = 20676095088.
The previous prime is 31238883197. The next prime is 31238883229.
31238883213 is nontrivially palindromic in base 10.
It is an interprime number because it is at equal distance from previous prime (31238883197) and next prime (31238883229).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31238883213 - 24 = 31238883197 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31238883253) 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, 37456278 + ... + 37457111.
It is an arithmetic number, because the mean of its divisors is an integer number (5243937300).
Almost surely, 231238883213 is an apocalyptic number.
It is an amenable number.
31238883213 is a deficient number, since it is larger than the sum of its proper divisors (10712615187).
31238883213 is a wasteful number, since it uses less digits than its factorization.
31238883213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74913531.
The product of its digits is 165888, while the sum is 42.
The spelling of 31238883213 in words is "thirty-one billion, two hundred thirty-eight million, eight hundred eighty-three thousand, two hundred thirteen".
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