Base | Representation |
---|---|
bin | 1000010100111… |
… | …01001110001101 |
3 | 11212102202011221 |
4 | 10022131032031 |
5 | 120340144442 |
6 | 10533043341 |
7 | 1505500210 |
oct | 412351615 |
9 | 155382157 |
10 | 69849997 |
11 | 36479378 |
12 | 1b486551 |
13 | 11618479 |
14 | 93c3777 |
15 | 61eb467 |
hex | 429d38d |
69849997 has 8 divisors (see below), whose sum is σ = 79952576. Its totient is φ = 59778432.
The previous prime is 69849973. The next prime is 69850021. The reversal of 69849997 is 79994896.
It is an interprime number because it is at equal distance from previous prime (69849973) and next prime (69850021).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-69849997 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 (69840997) 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 7 ways as a sum of consecutive naturals, for example, 2703 + ... + 12124.
It is an arithmetic number, because the mean of its divisors is an integer number (9994072).
Almost surely, 269849997 is an apocalyptic number.
It is an amenable number.
69849997 is a deficient number, since it is larger than the sum of its proper divisors (10102579).
69849997 is a wasteful number, since it uses less digits than its factorization.
69849997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15507.
The product of its digits is 8817984, while the sum is 61.
The square root of 69849997 is about 8357.6310638841. The cubic root of 69849997 is about 411.8339360431.
The spelling of 69849997 in words is "sixty-nine million, eight hundred forty-nine thousand, nine hundred ninety-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •