Base | Representation |
---|---|
bin | 1000010101110… |
… | …11000111110101 |
3 | 11212122222011221 |
4 | 10022323013311 |
5 | 120403104334 |
6 | 10535430341 |
7 | 1506520240 |
oct | 412730765 |
9 | 155588157 |
10 | 69972469 |
11 | 36552396 |
12 | 1b5253b1 |
13 | 1165c138 |
14 | 9416257 |
15 | 62228b4 |
hex | 42bb1f5 |
69972469 has 4 divisors (see below), whose sum is σ = 79968544. Its totient is φ = 59976396.
The previous prime is 69972449. The next prime is 69972473. The reversal of 69972469 is 96427996.
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.
It is a cyclic number.
It is not a de Polignac number, because 69972469 - 25 = 69972437 is a prime.
It is a super-2 number, since 2×699724692 = 9792292835911922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69972449) 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, 4998027 + ... + 4998040.
It is an arithmetic number, because the mean of its divisors is an integer number (19992136).
Almost surely, 269972469 is an apocalyptic number.
It is an amenable number.
69972469 is a deficient number, since it is larger than the sum of its proper divisors (9996075).
69972469 is an equidigital number, since it uses as much as digits as its factorization.
69972469 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9996074.
The product of its digits is 1469664, while the sum is 52.
The square root of 69972469 is about 8364.9548115934. The cubic root of 69972469 is about 412.0744928457.
The spelling of 69972469 in words is "sixty-nine million, nine hundred seventy-two thousand, four hundred sixty-nine".
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