Base | Representation |
---|---|
bin | 10110111011011110… |
… | …00000001110001001 |
3 | 1011202220110212012202 |
4 | 23131233000032021 |
5 | 200202331133001 |
6 | 5353302245545 |
7 | 614024311025 |
oct | 133557001611 |
9 | 34686425182 |
10 | 12310021001 |
11 | 524775aa83 |
12 | 24767268b5 |
13 | 12124608c5 |
14 | 84ac7d385 |
15 | 4c0aad96b |
hex | 2ddbc0389 |
12310021001 has 16 divisors (see below), whose sum is σ = 12594376704. Its totient is φ = 12029589504.
The previous prime is 12310020959. The next prime is 12310021039. The reversal of 12310021001 is 10012001321.
12310021001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 12310021001 - 26 = 12310020937 is a prime.
It is a super-2 number, since 2×123100210012 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12310051001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3824945 + ... + 3828161.
It is an arithmetic number, because the mean of its divisors is an integer number (787148544).
Almost surely, 212310021001 is an apocalyptic number.
It is an amenable number.
12310021001 is a deficient number, since it is larger than the sum of its proper divisors (284355703).
12310021001 is a wasteful number, since it uses less digits than its factorization.
12310021001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3800.
The product of its (nonzero) digits is 12, while the sum is 11.
Adding to 12310021001 its reverse (10012001321), we get a palindrome (22322022322).
The spelling of 12310021001 in words is "twelve billion, three hundred ten million, twenty-one thousand, one".
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