Base | Representation |
---|---|
bin | 1000000010000111011… |
… | …0001000100101110101 |
3 | 111012012221010110011121 |
4 | 2000201312020211311 |
5 | 4230114214330230 |
6 | 143222140303541 |
7 | 12653636244625 |
oct | 2004166104565 |
9 | 435187113147 |
10 | 138006792565 |
11 | 5358a266974 |
12 | 228b6241bb1 |
13 | 10024955605 |
14 | 6972a20885 |
15 | 38cac5177a |
hex | 2021d88975 |
138006792565 has 16 divisors (see below), whose sum is σ = 166114488960. Its totient is φ = 110068045120.
The previous prime is 138006792563. The next prime is 138006792577. The reversal of 138006792565 is 565297600831.
It is not a de Polignac number, because 138006792565 - 21 = 138006792563 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (138006792563) 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, 8584635 + ... + 8600695.
It is an arithmetic number, because the mean of its divisors is an integer number (10382155560).
Almost surely, 2138006792565 is an apocalyptic number.
It is an amenable number.
138006792565 is a deficient number, since it is larger than the sum of its proper divisors (28107696395).
138006792565 is a wasteful number, since it uses less digits than its factorization.
138006792565 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21212.
The product of its (nonzero) digits is 2721600, while the sum is 52.
The spelling of 138006792565 in words is "one hundred thirty-eight billion, six million, seven hundred ninety-two thousand, five hundred sixty-five".
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