Base | Representation |
---|---|
bin | 1001001111011110111011… |
… | …10101101000010110100111 |
3 | 2122221212202121001102220110 |
4 | 10213233131311220112213 |
5 | 10130433414244213111 |
6 | 111120204343104103 |
7 | 4165206066401220 |
oct | 447573565502647 |
9 | 78855677042813 |
10 | 20323212101031 |
11 | 6526031451404 |
12 | 2342936742033 |
13 | b45617104a68 |
14 | 503912100247 |
15 | 2539c029e5a6 |
hex | 127bddd685a7 |
20323212101031 has 8 divisors (see below), whose sum is σ = 30968704153984. Its totient is φ = 11613264057720.
The previous prime is 20323212100979. The next prime is 20323212101063. The reversal of 20323212101031 is 13010121232302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20323212101031 - 211 = 20323212098983 is a prime.
It is a super-2 number, since 2×203232121010312 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 967772004811 = 20323212101031 / (2 + 0 + 3 + 2 + 3 + 2 + 1 + 2 + 1 + 0 + 1 + 0 + 3 + 1).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20323212100989 and 20323212101007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20323212101531) 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, 483886002385 + ... + 483886002426.
It is an arithmetic number, because the mean of its divisors is an integer number (3871088019248).
Almost surely, 220323212101031 is an apocalyptic number.
20323212101031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20323212101031 is a deficient number, since it is larger than the sum of its proper divisors (10645492052953).
20323212101031 is an equidigital number, since it uses as much as digits as its factorization.
20323212101031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 967772004821.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 20323212101031 its reverse (13010121232302), we get a palindrome (33333333333333).
The spelling of 20323212101031 in words is "twenty trillion, three hundred twenty-three billion, two hundred twelve million, one hundred one thousand, thirty-one".
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