Base | Representation |
---|---|
bin | 11100111101101110… |
… | …010100000011011101 |
3 | 2222021102202001102021 |
4 | 130331232110003131 |
5 | 1002143140301023 |
6 | 22142015500141 |
7 | 2150460242515 |
oct | 347556240335 |
9 | 88242661367 |
10 | 31100322013 |
11 | 1220a359272 |
12 | 603b527651 |
13 | 2c18329507 |
14 | 171062c845 |
15 | c2052535d |
hex | 73db940dd |
31100322013 has 8 divisors (see below), whose sum is σ = 32857274880. Its totient is φ = 29389004400.
The previous prime is 31100321981. The next prime is 31100322031. The reversal of 31100322013 is 31022300113.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31100322013 - 25 = 31100321981 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31100382013) 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, 11407413 + ... + 11410138.
It is an arithmetic number, because the mean of its divisors is an integer number (4107159360).
Almost surely, 231100322013 is an apocalyptic number.
It is an amenable number.
31100322013 is a deficient number, since it is larger than the sum of its proper divisors (1756952867).
31100322013 is a wasteful number, since it uses less digits than its factorization.
31100322013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22817627.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 31100322013 its reverse (31022300113), we get a palindrome (62122622126).
The spelling of 31100322013 in words is "thirty-one billion, one hundred million, three hundred twenty-two thousand, thirteen".
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