Base | Representation |
---|---|
bin | 11110011001010111111101 |
3 | 112222211101111 |
4 | 132121113331 |
5 | 4014441003 |
6 | 442442021 |
7 | 124505026 |
oct | 36312775 |
9 | 15884344 |
10 | 7968253 |
11 | 4552737 |
12 | 2803311 |
13 | 185cb57 |
14 | 10b5c4d |
15 | a75e6d |
hex | 7995fd |
7968253 has 4 divisors (see below), whose sum is σ = 7974108. Its totient is φ = 7962400.
The previous prime is 7968229. The next prime is 7968299. The reversal of 7968253 is 3528697.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3528697 = 547 ⋅6451.
It can be written as a sum of positive squares in 2 ways, for example, as 1708249 + 6260004 = 1307^2 + 2502^2 .
It is a cyclic number.
It is not a de Polignac number, because 7968253 - 29 = 7967741 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 (7968203) 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, 303 + ... + 4003.
It is an arithmetic number, because the mean of its divisors is an integer number (1993527).
Almost surely, 27968253 is an apocalyptic number.
It is an amenable number.
7968253 is a deficient number, since it is larger than the sum of its proper divisors (5855).
7968253 is a wasteful number, since it uses less digits than its factorization.
7968253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5854.
The product of its digits is 90720, while the sum is 40.
The square root of 7968253 is about 2822.8094161668. The cubic root of 7968253 is about 199.7350909375.
The spelling of 7968253 in words is "seven million, nine hundred sixty-eight thousand, two hundred fifty-three".
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