Base | Representation |
---|---|
bin | 1000010001110… |
… | …00111001110101 |
3 | 11211122212112021 |
4 | 10020320321311 |
5 | 120234022333 |
6 | 10520153141 |
7 | 1502136223 |
oct | 410707165 |
9 | 154585467 |
10 | 69439093 |
11 | 36218689 |
12 | 1b3087b1 |
13 | 11503429 |
14 | 9317b13 |
15 | 616982d |
hex | 4238e75 |
69439093 has 4 divisors (see below), whose sum is σ = 72458208. Its totient is φ = 66419980.
The previous prime is 69439081. The next prime is 69439103. The reversal of 69439093 is 39093496.
It is a happy number.
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 69439093 - 25 = 69439061 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69439043) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509523 + ... + 1509568.
It is an arithmetic number, because the mean of its divisors is an integer number (18114552).
Almost surely, 269439093 is an apocalyptic number.
It is an amenable number.
69439093 is a deficient number, since it is larger than the sum of its proper divisors (3019115).
69439093 is a wasteful number, since it uses less digits than its factorization.
69439093 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3019114.
The product of its (nonzero) digits is 157464, while the sum is 43.
The square root of 69439093 is about 8333.0122404806. The cubic root of 69439093 is about 411.0247872130.
The spelling of 69439093 in words is "sixty-nine million, four hundred thirty-nine thousand, ninety-three".
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