Base | Representation |
---|---|
bin | 1011101000001001… |
… | …0000001111110101 |
3 | 22001112000000000202 |
4 | 2322002100033311 |
5 | 22343003344023 |
6 | 1233413050245 |
7 | 140226235316 |
oct | 27202201765 |
9 | 8045000022 |
10 | 3121153013 |
11 | 136189a500 |
12 | 731326985 |
13 | 3a9823204 |
14 | 21874260d |
15 | 134026128 |
hex | ba0903f5 |
3121153013 has 12 divisors (see below), whose sum is σ = 3451254240. Its totient is φ = 2820403080.
The previous prime is 3121153001. The next prime is 3121153037. The reversal of 3121153013 is 3103511213.
It is not a de Polignac number, because 3121153013 - 24 = 3121152997 is a prime.
It is a super-2 number, since 2×31211530132 = 19483192261117956338, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3121150013) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57023 + ... + 97436.
It is an arithmetic number, because the mean of its divisors is an integer number (287604520).
Almost surely, 23121153013 is an apocalyptic number.
It is an amenable number.
3121153013 is a deficient number, since it is larger than the sum of its proper divisors (330101227).
3121153013 is a wasteful number, since it uses less digits than its factorization.
3121153013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154648 (or 154637 counting only the distinct ones).
The product of its (nonzero) digits is 270, while the sum is 20.
The square root of 3121153013 is about 55867.2803436860. The cubic root of 3121153013 is about 1461.4086943214.
Adding to 3121153013 its reverse (3103511213), we get a palindrome (6224664226).
The spelling of 3121153013 in words is "three billion, one hundred twenty-one million, one hundred fifty-three thousand, thirteen".
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