Base | Representation |
---|---|
bin | 1011010101000100100… |
… | …00100100001010110101 |
3 | 1101012202211212201222221 |
4 | 11222202100210022311 |
5 | 22334210420324320 |
6 | 454454452122341 |
7 | 40060312344640 |
oct | 5524220441265 |
9 | 1335684781887 |
10 | 389269308085 |
11 | 1400a7415779 |
12 | 635396063b1 |
13 | 2a9284568b8 |
14 | 14baad96a57 |
15 | a1d48043aa |
hex | 5aa24242b5 |
389269308085 has 16 divisors (see below), whose sum is σ = 534058860672. Its totient is φ = 266825620800.
The previous prime is 389269308083. The next prime is 389269308089. The reversal of 389269308085 is 580803962983.
It is not a de Polignac number, because 389269308085 - 21 = 389269308083 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 (389269308083) 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, 2029971 + ... + 2213440.
It is an arithmetic number, because the mean of its divisors is an integer number (33378678792).
Almost surely, 2389269308085 is an apocalyptic number.
389269308085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
389269308085 is a deficient number, since it is larger than the sum of its proper divisors (144789552587).
389269308085 is a wasteful number, since it uses less digits than its factorization.
389269308085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4246044.
The product of its (nonzero) digits is 22394880, while the sum is 61.
The spelling of 389269308085 in words is "three hundred eighty-nine billion, two hundred sixty-nine million, three hundred eight thousand, eighty-five".
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