Base | Representation |
---|---|
bin | 11110011111110000110101 |
3 | 120001011021200 |
4 | 132133300311 |
5 | 4021310141 |
6 | 443203113 |
7 | 124644231 |
oct | 36376065 |
9 | 16034250 |
10 | 7994421 |
11 | 4570366 |
12 | 2816499 |
13 | 186ba36 |
14 | 10c15c1 |
15 | a7dab6 |
hex | 79fc35 |
7994421 has 12 divisors (see below), whose sum is σ = 12155520. Its totient is φ = 5049000.
The previous prime is 7994407. The next prime is 7994443. The reversal of 7994421 is 1244997.
It is not a de Polignac number, because 7994421 - 211 = 7992373 is a prime.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
7994421 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7994461) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23205 + ... + 23546.
It is an arithmetic number, because the mean of its divisors is an integer number (1012960).
Almost surely, 27994421 is an apocalyptic number.
It is an amenable number.
7994421 is a deficient number, since it is larger than the sum of its proper divisors (4161099).
7994421 is a wasteful number, since it uses less digits than its factorization.
7994421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46776 (or 46773 counting only the distinct ones).
The product of its digits is 18144, while the sum is 36.
The square root of 7994421 is about 2827.4407155589. The cubic root of 7994421 is about 199.9534975218.
The spelling of 7994421 in words is "seven million, nine hundred ninety-four thousand, four hundred twenty-one".
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