Base | Representation |
---|---|
bin | 111111010010000… |
… | …1101101011000001 |
3 | 12110222121000221010 |
4 | 1332210031223001 |
5 | 13322044004101 |
6 | 550412151133 |
7 | 103422535602 |
oct | 17644155301 |
9 | 5428530833 |
10 | 2123422401 |
11 | 99a686751 |
12 | 4b31684a9 |
13 | 27abcbc79 |
14 | 162025da9 |
15 | c66422d6 |
hex | 7e90dac1 |
2123422401 has 4 divisors (see below), whose sum is σ = 2831229872. Its totient is φ = 1415614932.
The previous prime is 2123422391. The next prime is 2123422403. The reversal of 2123422401 is 1042243212.
2123422401 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 2123422401 - 26 = 2123422337 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2123422403) 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, 353903731 + ... + 353903736.
It is an arithmetic number, because the mean of its divisors is an integer number (707807468).
Almost surely, 22123422401 is an apocalyptic number.
It is an amenable number.
2123422401 is a deficient number, since it is larger than the sum of its proper divisors (707807471).
2123422401 is an equidigital number, since it uses as much as digits as its factorization.
2123422401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 707807470.
The product of its (nonzero) digits is 768, while the sum is 21.
The square root of 2123422401 is about 46080.6076457331. The cubic root of 2123422401 is about 1285.3225635239.
Adding to 2123422401 its reverse (1042243212), we get a palindrome (3165665613).
The spelling of 2123422401 in words is "two billion, one hundred twenty-three million, four hundred twenty-two thousand, four hundred one".
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