Base | Representation |
---|---|
bin | 10010111010000110… |
… | …000010001001011111 |
3 | 1221101212211010020021 |
4 | 102322012002021133 |
5 | 313034303404043 |
6 | 13154314333011 |
7 | 1316050156225 |
oct | 227206021137 |
9 | 57355733207 |
10 | 20302013023 |
11 | 8678a58966 |
12 | 3b2712a167 |
13 | 1bb712ba76 |
14 | da8460b15 |
15 | 7dc5263ed |
hex | 4ba18225f |
20302013023 has 4 divisors (see below), whose sum is σ = 20335906800. Its totient is φ = 20268119248.
The previous prime is 20302013021. The next prime is 20302013033. The reversal of 20302013023 is 32031020302.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 20302013023 - 21 = 20302013021 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20302012988 and 20302013006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20302013021) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16945990 + ... + 16947187.
It is an arithmetic number, because the mean of its divisors is an integer number (5083976700).
Almost surely, 220302013023 is an apocalyptic number.
20302013023 is a deficient number, since it is larger than the sum of its proper divisors (33893777).
20302013023 is an equidigital number, since it uses as much as digits as its factorization.
20302013023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33893776.
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 20302013023 its reverse (32031020302), we get a palindrome (52333033325).
The spelling of 20302013023 in words is "twenty billion, three hundred two million, thirteen thousand, twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •