Base | Representation |
---|---|
bin | 1000111011010… |
… | …10111100111001 |
3 | 12012220122121110 |
4 | 10131222330321 |
5 | 123132340334 |
6 | 11233030533 |
7 | 1566346233 |
oct | 435527471 |
9 | 165818543 |
10 | 74886969 |
11 | 392a9763 |
12 | 210b5449 |
13 | 12690021 |
14 | 9d35253 |
15 | 6893ae9 |
hex | 476af39 |
74886969 has 4 divisors (see below), whose sum is σ = 99849296. Its totient is φ = 49924644.
The previous prime is 74886943. The next prime is 74886997. The reversal of 74886969 is 96968847.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96968847 = 3 ⋅32322949.
It is not a de Polignac number, because 74886969 - 25 = 74886937 is a prime.
It is a super-2 number, since 2×748869692 = 11216116252013922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (74886269) 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, 12481159 + ... + 12481164.
It is an arithmetic number, because the mean of its divisors is an integer number (24962324).
Almost surely, 274886969 is an apocalyptic number.
It is an amenable number.
74886969 is a deficient number, since it is larger than the sum of its proper divisors (24962327).
74886969 is a wasteful number, since it uses less digits than its factorization.
74886969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24962326.
The product of its digits is 5225472, while the sum is 57.
The square root of 74886969 is about 8653.7257294185. The cubic root of 74886969 is about 421.5043727181.
It can be divided in two parts, 74886 and 969, that added together give a triangular number (75855 = T389).
The spelling of 74886969 in words is "seventy-four million, eight hundred eighty-six thousand, nine hundred sixty-nine".
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