Base | Representation |
---|---|
bin | 10010111111011101… |
… | …110111010000100110 |
3 | 1221122011102100101010 |
4 | 102333131313100212 |
5 | 313230342132313 |
6 | 13211254243050 |
7 | 1321223244402 |
oct | 227735672046 |
9 | 57564370333 |
10 | 20392145958 |
11 | 8714920098 |
12 | 3b51356486 |
13 | 1bcc9c9372 |
14 | db6404102 |
15 | 7e53cc4c3 |
hex | 4bf777426 |
20392145958 has 8 divisors (see below), whose sum is σ = 40784291928. Its totient is φ = 6797381984.
The previous prime is 20392145927. The next prime is 20392146011. The reversal of 20392145958 is 85954129302.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
20392145958 is an admirable number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699345491 + ... + 1699345502.
It is an arithmetic number, because the mean of its divisors is an integer number (5098036491).
Almost surely, 220392145958 is an apocalyptic number.
20392145958 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20392145958 is a wasteful number, since it uses less digits than its factorization.
20392145958 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3398690998.
The product of its (nonzero) digits is 777600, while the sum is 48.
The spelling of 20392145958 in words is "twenty billion, three hundred ninety-two million, one hundred forty-five thousand, nine hundred fifty-eight".
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