Base | Representation |
---|---|
bin | 10010101111010111… |
… | …110101011110011001 |
3 | 1220221100100010120021 |
4 | 102233113311132121 |
5 | 312202231132304 |
6 | 13124411030441 |
7 | 1311434200000 |
oct | 225727653631 |
9 | 56840303507 |
10 | 20122130329 |
11 | 8596466384 |
12 | 3a96a3b421 |
13 | 1b88a993c2 |
14 | d8c5d7c37 |
15 | 7cb842a54 |
hex | 4af5f5799 |
20122130329 has 48 divisors (see below), whose sum is σ = 25140593280. Its totient is φ = 16056351360.
The previous prime is 20122130311. The next prime is 20122130383. The reversal of 20122130329 is 92303122102.
It is not a de Polignac number, because 20122130329 - 27 = 20122130201 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20122130309) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19478797 + ... + 19479829.
It is an arithmetic number, because the mean of its divisors is an integer number (523762360).
Almost surely, 220122130329 is an apocalyptic number.
It is an amenable number.
20122130329 is a deficient number, since it is larger than the sum of its proper divisors (5018462951).
20122130329 is an frugal number, since it uses more digits than its factorization.
20122130329 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1148 (or 1120 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 25.
The spelling of 20122130329 in words is "twenty billion, one hundred twenty-two million, one hundred thirty thousand, three hundred twenty-nine".
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