Base | Representation |
---|---|
bin | 100000010000011111… |
… | …0011010100110111001 |
3 | 20121210201211020221200 |
4 | 1000200332122212321 |
5 | 2113332303201221 |
6 | 51453510324413 |
7 | 5001433213236 |
oct | 1004076324671 |
9 | 217721736850 |
10 | 69272709561 |
11 | 27418702aa0 |
12 | 11513359709 |
13 | 66bc871693 |
14 | 34d21b678d |
15 | 1c0684c426 |
hex | 1020f9a9b9 |
69272709561 has 24 divisors (see below), whose sum is σ = 109227527136. Its totient is φ = 41956333440.
The previous prime is 69272709503. The next prime is 69272709673. The reversal of 69272709561 is 16590727296.
69272709561 is a `hidden beast` number, since 6 + 9 + 2 + 7 + 2 + 70 + 9 + 561 = 666.
It is not a de Polignac number, because 69272709561 - 27 = 69272709433 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 69272709498 and 69272709507.
It is not an unprimeable number, because it can be changed into a prime (69272709761) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 71535 + ... + 379028.
It is an arithmetic number, because the mean of its divisors is an integer number (4551146964).
Almost surely, 269272709561 is an apocalyptic number.
It is an amenable number.
69272709561 is a deficient number, since it is larger than the sum of its proper divisors (39954817575).
69272709561 is a wasteful number, since it uses less digits than its factorization.
69272709561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 452133 (or 452130 counting only the distinct ones).
The product of its (nonzero) digits is 2857680, while the sum is 54.
The spelling of 69272709561 in words is "sixty-nine billion, two hundred seventy-two million, seven hundred nine thousand, five hundred sixty-one".
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