Base | Representation |
---|---|
bin | 1000111011111… |
… | …11000100010101 |
3 | 12020001211122011 |
4 | 10131333010111 |
5 | 123143004430 |
6 | 11234504221 |
7 | 1600141402 |
oct | 435770425 |
9 | 166054564 |
10 | 74969365 |
11 | 39355659 |
12 | 21135071 |
13 | 126bb693 |
14 | 9d572a9 |
15 | 68ad22a |
hex | 477f115 |
74969365 has 4 divisors (see below), whose sum is σ = 89963244. Its totient is φ = 59975488.
The previous prime is 74969359. The next prime is 74969369. The reversal of 74969365 is 56396947.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56396947 = 149 ⋅378503.
It can be written as a sum of positive squares in 2 ways, for example, as 16859236 + 58110129 = 4106^2 + 7623^2 .
It is a cyclic number.
It is not a de Polignac number, because 74969365 - 217 = 74838293 is a prime.
It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (74969369) 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, 7496932 + ... + 7496941.
It is an arithmetic number, because the mean of its divisors is an integer number (22490811).
Almost surely, 274969365 is an apocalyptic number.
It is an amenable number.
74969365 is a deficient number, since it is larger than the sum of its proper divisors (14993879).
74969365 is a wasteful number, since it uses less digits than its factorization.
74969365 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14993878.
The product of its digits is 1224720, while the sum is 49.
The square root of 74969365 is about 8658.4851446428. The cubic root of 74969365 is about 421.6589058096.
It can be divided in two parts, 7496 and 9365, that added together give a palindrome (16861).
The spelling of 74969365 in words is "seventy-four million, nine hundred sixty-nine thousand, three hundred sixty-five".
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