Base | Representation |
---|---|
bin | 10011010111010101… |
… | …100110000010111101 |
3 | 1222200002000010020102 |
4 | 103113111212002331 |
5 | 320040403201420 |
6 | 13315122130445 |
7 | 1334155310603 |
oct | 232725460275 |
9 | 58602003212 |
10 | 20792631485 |
11 | 88aa99786a |
12 | 40434b0a25 |
13 | 1c6497a952 |
14 | 1013693873 |
15 | 81a639a75 |
hex | 4d75660bd |
20792631485 has 8 divisors (see below), whose sum is σ = 24954483456. Its totient is φ = 16631888080.
The previous prime is 20792631469. The next prime is 20792631499. The reversal of 20792631485 is 58413629702.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20792631485 - 24 = 20792631469 is a prime.
It is a Duffinian number.
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 7 ways as a sum of consecutive naturals, for example, 235301 + ... + 311370.
It is an arithmetic number, because the mean of its divisors is an integer number (3119310432).
It is a 1-persistent number, because it is pandigital, but 2⋅20792631485 = 41585262970 is not.
Almost surely, 220792631485 is an apocalyptic number.
It is an amenable number.
20792631485 is a deficient number, since it is larger than the sum of its proper divisors (4161851971).
20792631485 is an equidigital number, since it uses as much as digits as its factorization.
20792631485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 554283.
The product of its (nonzero) digits is 725760, while the sum is 47.
The spelling of 20792631485 in words is "twenty billion, seven hundred ninety-two million, six hundred thirty-one thousand, four hundred eighty-five".
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