Base | Representation |
---|---|
bin | 10010110101110111… |
… | …001001001110110100 |
3 | 1221012221012100001210 |
4 | 102311313021032310 |
5 | 312413114013022 |
6 | 13143300321420 |
7 | 1314225446145 |
oct | 226567111664 |
9 | 57187170053 |
10 | 20231001012 |
11 | 8641966552 |
12 | 3b073a3270 |
13 | 1ba54c7721 |
14 | d9cc57acc |
15 | 7d619aa0c |
hex | 4b5dc93b4 |
20231001012 has 12 divisors (see below), whose sum is σ = 47205669056. Its totient is φ = 6743667000.
The previous prime is 20231001001. The next prime is 20231001023. The reversal of 20231001012 is 21010013202.
It is an interprime number because it is at equal distance from previous prime (20231001001) and next prime (20231001023).
It is a tau number, because it is divible by the number of its divisors (12).
It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1685916751 = 20231001012 / (2 + 0 + 2 + 3 + 1 + 0 + 0 + 1 + 0 + 1 + 2).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842958364 + ... + 842958387.
Almost surely, 220231001012 is an apocalyptic number.
It is an amenable number.
20231001012 is an abundant number, since it is smaller than the sum of its proper divisors (26974668044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20231001012 is a wasteful number, since it uses less digits than its factorization.
20231001012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1685916758 (or 1685916756 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 20231001012 its reverse (21010013202), we get a palindrome (41241014214).
The spelling of 20231001012 in words is "twenty billion, two hundred thirty-one million, one thousand, twelve".
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