Search a number
-
+
16257039189 = 3311481118033
BaseRepresentation
bin11110010001111111…
…01011101101010101
31112221222111011021120
433020333223231111
5231243300223224
611245100434153
71113602360466
oct171077535525
945858434246
1016257039189
116992747186
123198548959
1316c10c1921
14b03160d6d
1565236a779
hex3c8febb55

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".

Divisors: 1 3 31 93 1481 4443 45911 118033 137733 354099 3659023 10977069 174806873 524420619 5419013063 16257039189