Base | Representation |
---|---|
bin | 1000010101000… |
… | …01110110110111 |
3 | 11212110201020010 |
4 | 10022201312313 |
5 | 120341301413 |
6 | 10533311303 |
7 | 1505606442 |
oct | 412416667 |
9 | 155421203 |
10 | 69868983 |
11 | 36491668 |
12 | 1b495533 |
13 | 11623cc2 |
14 | 93ca659 |
15 | 6201dc3 |
hex | 42a1db7 |
69868983 has 4 divisors (see below), whose sum is σ = 93158648. Its totient is φ = 46579320.
The previous prime is 69868969. The next prime is 69868993. The reversal of 69868983 is 38986896.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 69868983 - 25 = 69868951 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 (69868993) 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, 11644828 + ... + 11644833.
It is an arithmetic number, because the mean of its divisors is an integer number (23289662).
Almost surely, 269868983 is an apocalyptic number.
69868983 is a deficient number, since it is larger than the sum of its proper divisors (23289665).
69868983 is a wasteful number, since it uses less digits than its factorization.
69868983 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23289664.
The product of its digits is 4478976, while the sum is 57.
The square root of 69868983 is about 8358.7668348866. The cubic root of 69868983 is about 411.8712463324.
The spelling of 69868983 in words is "sixty-nine million, eight hundred sixty-eight thousand, nine hundred eighty-three".
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