Base | Representation |
---|---|
bin | 10010101111010011… |
… | …010111011111111101 |
3 | 1220221021010121202201 |
4 | 102233103113133331 |
5 | 312201431141343 |
6 | 13124325551501 |
7 | 1311421220653 |
oct | 225723273775 |
9 | 56837117681 |
10 | 20120958973 |
11 | 8595836315 |
12 | 3a96575591 |
13 | 1b887791ab |
14 | d8c3b0dd3 |
15 | 7cb6b094d |
hex | 4af4d77fd |
20120958973 has 2 divisors, whose sum is σ = 20120958974. Its totient is φ = 20120958972.
The previous prime is 20120958967. The next prime is 20120958989. The reversal of 20120958973 is 37985902102.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 19988869924 + 132089049 = 141382^2 + 11493^2 .
It is a cyclic number.
It is not a de Polignac number, because 20120958973 - 217 = 20120827901 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20120958953) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060479486 + 10060479487.
It is an arithmetic number, because the mean of its divisors is an integer number (10060479487).
Almost surely, 220120958973 is an apocalyptic number.
It is an amenable number.
20120958973 is a deficient number, since it is larger than the sum of its proper divisors (1).
20120958973 is an equidigital number, since it uses as much as digits as its factorization.
20120958973 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 272160, while the sum is 46.
The spelling of 20120958973 in words is "twenty billion, one hundred twenty million, nine hundred fifty-eight thousand, nine hundred seventy-three".
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