Base | Representation |
---|---|
bin | 11100010011100111101000 |
3 | 111221222212100 |
4 | 130103213220 |
5 | 3344423032 |
6 | 423013400 |
7 | 120033540 |
oct | 34234750 |
9 | 14858770 |
10 | 7420392 |
11 | 4209061 |
12 | 259a260 |
13 | 16ca685 |
14 | db2320 |
15 | 9b897c |
hex | 7139e8 |
7420392 has 48 divisors (see below), whose sum is σ = 22969440. Its totient is φ = 2119968.
The previous prime is 7420363. The next prime is 7420397. The reversal of 7420392 is 2930247.
7420392 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (7420397) 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, 6858 + ... + 7865.
It is an arithmetic number, because the mean of its divisors is an integer number (478530).
Almost surely, 27420392 is an apocalyptic number.
7420392 is a gapful number since it is divisible by the number (72) formed by its first and last digit.
It is an amenable number.
7420392 is an abundant number, since it is smaller than the sum of its proper divisors (15549048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7420392 is a wasteful number, since it uses less digits than its factorization.
7420392 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14742 (or 14735 counting only the distinct ones).
The product of its (nonzero) digits is 3024, while the sum is 27.
The square root of 7420392 is about 2724.0396472886. The cubic root of 7420392 is about 195.0483509294.
The spelling of 7420392 in words is "seven million, four hundred twenty thousand, three hundred ninety-two".
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