Base | Representation |
---|---|
bin | 11100010100001111111101 |
3 | 111222010101221 |
4 | 130110033331 |
5 | 3400013343 |
6 | 423033341 |
7 | 120044215 |
oct | 34241775 |
9 | 14863357 |
10 | 7422973 |
11 | 420aa98 |
12 | 259b851 |
13 | 16cb8bc |
14 | db3245 |
15 | 9b95ed |
hex | 7143fd |
7422973 has 4 divisors (see below), whose sum is σ = 7461628. Its totient is φ = 7384320.
The previous prime is 7422959. The next prime is 7423007. The reversal of 7422973 is 3792247.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3792247 = 101 ⋅37547.
It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 5890329 = 1238^2 + 2427^2 .
It is a cyclic number.
It is not a de Polignac number, because 7422973 - 217 = 7291901 is a prime.
It is an Ulam number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7422913) 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, 19038 + ... + 19423.
It is an arithmetic number, because the mean of its divisors is an integer number (1865407).
Almost surely, 27422973 is an apocalyptic number.
It is an amenable number.
7422973 is a deficient number, since it is larger than the sum of its proper divisors (38655).
7422973 is a wasteful number, since it uses less digits than its factorization.
7422973 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38654.
The product of its digits is 21168, while the sum is 34.
The square root of 7422973 is about 2724.5133510409. The cubic root of 7422973 is about 195.0709625577.
The spelling of 7422973 in words is "seven million, four hundred twenty-two thousand, nine hundred seventy-three".
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