Base | Representation |
---|---|
bin | 11100111101110100… |
… | …101101101110001101 |
3 | 2222021112220022012102 |
4 | 130331310231232031 |
5 | 1002144103000023 |
6 | 22142115444445 |
7 | 2150510431610 |
oct | 347564555615 |
9 | 88245808172 |
10 | 31102000013 |
11 | 122102a4a47 |
12 | 603bbb6725 |
13 | 2c18796206 |
14 | 1710948177 |
15 | c20757628 |
hex | 73dd2db8d |
31102000013 has 8 divisors (see below), whose sum is σ = 36691760640. Its totient is φ = 25798893840.
The previous prime is 31101999997. The next prime is 31102000019. The reversal of 31102000013 is 31000020113.
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 31102000013 - 24 = 31101999997 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31101999958 and 31102000003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31102000019) 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, 71663378 + ... + 71663811.
It is an arithmetic number, because the mean of its divisors is an integer number (4586470080).
Almost surely, 231102000013 is an apocalyptic number.
It is an amenable number.
31102000013 is a deficient number, since it is larger than the sum of its proper divisors (5589760627).
31102000013 is a wasteful number, since it uses less digits than its factorization.
31102000013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 143327227.
The product of its (nonzero) digits is 18, while the sum is 11.
Adding to 31102000013 its reverse (31000020113), we get a palindrome (62102020126).
The spelling of 31102000013 in words is "thirty-one billion, one hundred two million, thirteen", and thus it is an aban number.
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