Base | Representation |
---|---|
bin | 11110010001111111… |
… | …01011101101010101 |
3 | 1112221222111011021120 |
4 | 33020333223231111 |
5 | 231243300223224 |
6 | 11245100434153 |
7 | 1113602360466 |
oct | 171077535525 |
9 | 45858434246 |
10 | 16257039189 |
11 | 6992747186 |
12 | 3198548959 |
13 | 16c10c1921 |
14 | b03160d6d |
15 | 65236a779 |
hex | 3c8febb55 |
16257039189 has 16 divisors (see below), whose sum is σ = 22390577664. Its totient is φ = 10481241600.
The previous prime is 16257039187. The next prime is 16257039233. The reversal of 16257039189 is 98193075261.
It is not a de Polignac number, because 16257039189 - 21 = 16257039187 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16257039187) 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, 78717 + ... + 196749.
It is an arithmetic number, because the mean of its divisors is an integer number (1399411104).
Almost surely, 216257039189 is an apocalyptic number.
It is an amenable number.
16257039189 is a deficient number, since it is larger than the sum of its proper divisors (6133538475).
16257039189 is a wasteful number, since it uses less digits than its factorization.
16257039189 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 119548.
The product of its (nonzero) digits is 816480, while the sum is 51.
The spelling of 16257039189 in words is "sixteen billion, two hundred fifty-seven million, thirty-nine thousand, one hundred eighty-nine".
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