Base | Representation |
---|---|
bin | 10010101111011010… |
… | …111000110001100111 |
3 | 1220221101211202220001 |
4 | 102233122320301213 |
5 | 312202432232104 |
6 | 13124440122131 |
7 | 1311444041134 |
oct | 225732706147 |
9 | 56841752801 |
10 | 20122930279 |
11 | 85969623a1 |
12 | 3a97166347 |
13 | 1b88cb954a |
14 | d8c76558b |
15 | 7cb94eaa4 |
hex | 4af6b8c67 |
20122930279 has 8 divisors (see below), whose sum is σ = 20219981760. Its totient is φ = 20025986400.
The previous prime is 20122930259. The next prime is 20122930301. The reversal of 20122930279 is 97203922102.
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 20122930279 - 213 = 20122922087 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20122930259) 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, 361449 + ... + 413389.
It is an arithmetic number, because the mean of its divisors is an integer number (2527497720).
Almost surely, 220122930279 is an apocalyptic number.
20122930279 is a deficient number, since it is larger than the sum of its proper divisors (97051481).
20122930279 is a wasteful number, since it uses less digits than its factorization.
20122930279 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53801.
The product of its (nonzero) digits is 27216, while the sum is 37.
The spelling of 20122930279 in words is "twenty billion, one hundred twenty-two million, nine hundred thirty thousand, two hundred seventy-nine".
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