Base | Representation |
---|---|
bin | 100000100010011111… |
… | …1000101010110000001 |
3 | 20200100211122111120021 |
4 | 1001010333011112001 |
5 | 2121101434130020 |
6 | 52033451413441 |
7 | 5022420355456 |
oct | 1010477052601 |
9 | 220324574507 |
10 | 69876864385 |
11 | 276a87394a9 |
12 | 11661754281 |
13 | 6787a93443 |
14 | 354c52182d |
15 | 1c3e8db1aa |
hex | 1044fc5581 |
69876864385 has 16 divisors (see below), whose sum is σ = 84596190336. Its totient is φ = 55406798208.
The previous prime is 69876864383. The next prime is 69876864427. The reversal of 69876864385 is 58346867896.
It is not a de Polignac number, because 69876864385 - 21 = 69876864383 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (69876864383) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361132 + ... + 519778.
It is an arithmetic number, because the mean of its divisors is an integer number (5287261896).
Almost surely, 269876864385 is an apocalyptic number.
It is an amenable number.
69876864385 is a deficient number, since it is larger than the sum of its proper divisors (14719325951).
69876864385 is a wasteful number, since it uses less digits than its factorization.
69876864385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 159432.
The product of its digits is 418037760, while the sum is 70.
The spelling of 69876864385 in words is "sixty-nine billion, eight hundred seventy-six million, eight hundred sixty-four thousand, three hundred eighty-five".
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