Base | Representation |
---|---|
bin | 1111001011111… |
… | …00001100010101 |
3 | 22212200220021102 |
4 | 13211330030111 |
5 | 230102331024 |
6 | 20350155445 |
7 | 3104523614 |
oct | 745741425 |
9 | 285626242 |
10 | 127386389 |
11 | 659a7309 |
12 | 367b2b85 |
13 | 20511c80 |
14 | 12cbd87b |
15 | b2b41ae |
hex | 797c315 |
127386389 has 16 divisors (see below), whose sum is σ = 146639808. Its totient is φ = 109615872.
The previous prime is 127386379. The next prime is 127386407. The reversal of 127386389 is 983683721.
It is a cyclic number.
It is not a de Polignac number, because 127386389 - 224 = 110609173 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 (127386319) 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, 20954 + ... + 26340.
It is an arithmetic number, because the mean of its divisors is an integer number (9164988).
Almost surely, 2127386389 is an apocalyptic number.
It is an amenable number.
127386389 is a deficient number, since it is larger than the sum of its proper divisors (19253419).
127386389 is a wasteful number, since it uses less digits than its factorization.
127386389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5524.
The product of its digits is 435456, while the sum is 47.
The square root of 127386389 is about 11286.5578898086. The cubic root of 127386389 is about 503.1618156978.
The spelling of 127386389 in words is "one hundred twenty-seven million, three hundred eighty-six thousand, three hundred eighty-nine".
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