Base | Representation |
---|---|
bin | 10010101000110100… |
… | …100001011101100111 |
3 | 1220122200111121020211 |
4 | 102220310201131213 |
5 | 311441111210043 |
6 | 13105443040251 |
7 | 1305630656431 |
oct | 225064413547 |
9 | 56580447224 |
10 | 20012210023 |
11 | 853a409653 |
12 | 3a66070087 |
13 | 1b6c0913c0 |
14 | d7bb83651 |
15 | 7c1d7da9d |
hex | 4a8d21767 |
20012210023 has 8 divisors (see below), whose sum is σ = 21855155616. Its totient is φ = 18212628000.
The previous prime is 20012210021. The next prime is 20012210051. The reversal of 20012210023 is 32001221002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20012210023 - 21 = 20012210021 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20012209985 and 20012210012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20012210021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10839928 + ... + 10841773.
It is an arithmetic number, because the mean of its divisors is an integer number (2731894452).
Almost surely, 220012210023 is an apocalyptic number.
20012210023 is a deficient number, since it is larger than the sum of its proper divisors (1842945593).
20012210023 is a wasteful number, since it uses less digits than its factorization.
20012210023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21681785.
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 20012210023 its reverse (32001221002), we get a palindrome (52013431025).
It can be divided in two parts, 2001221002 and 3, that multiplied together give a palindrome (6003663006).
The spelling of 20012210023 in words is "twenty billion, twelve million, two hundred ten thousand, twenty-three".
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