Base | Representation |
---|---|
bin | 11100100000101101010000 |
3 | 112001201101211 |
4 | 130200231100 |
5 | 3403132000 |
6 | 424105504 |
7 | 120346042 |
oct | 34405520 |
9 | 15051354 |
10 | 7474000 |
11 | 4245366 |
12 | 2605294 |
13 | 1718bb1 |
14 | dc7a92 |
15 | 9c97ba |
hex | 720b50 |
7474000 has 80 divisors (see below), whose sum is σ = 18744336. Its totient is φ = 2880000.
The previous prime is 7473979. The next prime is 7474001. The reversal of 7474000 is 4747.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 53824 + 7420176 = 232^2 + 2724^2 .
It is a tau number, because it is divible by the number of its divisors (80).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7474001) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73950 + ... + 74050.
Almost surely, 27474000 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7474000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9372168).
7474000 is an abundant number, since it is smaller than the sum of its proper divisors (11270336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7474000 is a wasteful number, since it uses less digits than its factorization.
7474000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 161 (or 145 counting only the distinct ones).
The product of its (nonzero) digits is 784, while the sum is 22.
The square root of 7474000 is about 2733.8617375427. The cubic root of 7474000 is about 195.5169278235.
Adding to 7474000 its reverse (4747), we get a palindrome (7478747).
The spelling of 7474000 in words is "seven million, four hundred seventy-four thousand".
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