Base | Representation |
---|---|
bin | 1000010101111… |
… | …01101111101110 |
3 | 11212200111220220 |
4 | 10022331233232 |
5 | 120403430324 |
6 | 10535552210 |
7 | 1506563460 |
oct | 412755756 |
9 | 155614826 |
10 | 69983214 |
11 | 3655a474 |
12 | 1b52b666 |
13 | 11663cb2 |
14 | 941a130 |
15 | 6225b79 |
hex | 42bdbee |
69983214 has 64 divisors (see below), whose sum is σ = 164851200. Its totient is φ = 19393920.
The previous prime is 69983197. The next prime is 69983233. The reversal of 69983214 is 41238996.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331569 + ... + 331779.
It is an arithmetic number, because the mean of its divisors is an integer number (2575800).
Almost surely, 269983214 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 69983214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82425600).
69983214 is an abundant number, since it is smaller than the sum of its proper divisors (94867986).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69983214 is a wasteful number, since it uses less digits than its factorization.
69983214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 425.
The product of its digits is 93312, while the sum is 42.
The square root of 69983214 is about 8365.5970498226. The cubic root of 69983214 is about 412.0955845401.
The spelling of 69983214 in words is "sixty-nine million, nine hundred eighty-three thousand, two hundred fourteen".
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