Base | Representation |
---|---|
bin | 10010101001011110… |
… | …100011111010010111 |
3 | 1220200110020110221221 |
4 | 102221132203322113 |
5 | 312001421330403 |
6 | 13110515151211 |
7 | 1306123435102 |
oct | 225136437227 |
9 | 56613213857 |
10 | 20023230103 |
11 | 8545656158 |
12 | 3a698a5507 |
13 | 1b7144c366 |
14 | d7d411739 |
15 | 7c2d08dbd |
hex | 4a97a3e97 |
20023230103 has 4 divisors (see below), whose sum is σ = 20221480008. Its totient is φ = 19824980200.
The previous prime is 20023230089. The next prime is 20023230121. The reversal of 20023230103 is 30103232002.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-20023230103 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20023230133) 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, 99124801 + ... + 99125002.
It is an arithmetic number, because the mean of its divisors is an integer number (5055370002).
Almost surely, 220023230103 is an apocalyptic number.
20023230103 is a deficient number, since it is larger than the sum of its proper divisors (198249905).
20023230103 is a wasteful number, since it uses less digits than its factorization.
20023230103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 198249904.
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 20023230103 its reverse (30103232002), we get a palindrome (50126462105).
The spelling of 20023230103 in words is "twenty billion, twenty-three million, two hundred thirty thousand, one hundred three".
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