Base | Representation |
---|---|
bin | 1000010010001… |
… | …00111011111011 |
3 | 11211202101010200 |
4 | 10021010323323 |
5 | 120242112004 |
6 | 10521213243 |
7 | 1502433012 |
oct | 411047373 |
9 | 154671120 |
10 | 69488379 |
11 | 36251714 |
12 | 1b331223 |
13 | 1151c9ac |
14 | 932ba79 |
15 | 6179239 |
hex | 4244efb |
69488379 has 12 divisors (see below), whose sum is σ = 103833600. Its totient is φ = 44727984.
The previous prime is 69488351. The next prime is 69488383. The reversal of 69488379 is 97388496.
It is not a de Polignac number, because 69488379 - 28 = 69488123 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69488579) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132859 + ... + 133380.
It is an arithmetic number, because the mean of its divisors is an integer number (8652800).
Almost surely, 269488379 is an apocalyptic number.
69488379 is a deficient number, since it is larger than the sum of its proper divisors (34345221).
69488379 is a wasteful number, since it uses less digits than its factorization.
69488379 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266274 (or 266271 counting only the distinct ones).
The product of its digits is 2612736, while the sum is 54.
The square root of 69488379 is about 8335.9689898655. The cubic root of 69488379 is about 411.1220089934.
The spelling of 69488379 in words is "sixty-nine million, four hundred eighty-eight thousand, three hundred seventy-nine".
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