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16264989369 = 3213613132757
BaseRepresentation
bin11110010010111100…
…00000101010111001
31112222112110001212200
433021132000222321
5231302314124434
611245543100413
71114030062036
oct171136005271
945875401780
1016264989369
116997187282
12319b141709
1316c2946485
14b0423038d
15652ddb199
hex3c9780ab9

16264989369 has 12 divisors (see below), whose sum is σ = 23495776356. Its totient is φ = 10842448032.

The previous prime is 16264989283. The next prime is 16264989371. The reversal of 16264989369 is 96398946261.

16264989369 is a `hidden beast` number, since 1 + 6 + 264 + 9 + 8 + 9 + 369 = 666.

16264989369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24800400 + 16240188969 = 4980^2 + 127437^2 .

It is not a de Polignac number, because 16264989369 - 28 = 16264989113 is a prime.

It is a super-2 number, since 2×162649893692 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16264989379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56139 + ... + 188895.

It is an arithmetic number, because the mean of its divisors is an integer number (1957981363).

Almost surely, 216264989369 is an apocalyptic number.

It is an amenable number.

16264989369 is a deficient number, since it is larger than the sum of its proper divisors (7230786987).

16264989369 is a wasteful number, since it uses less digits than its factorization.

16264989369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146376 (or 146373 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 63.

The spelling of 16264989369 in words is "sixteen billion, two hundred sixty-four million, nine hundred eighty-nine thousand, three hundred sixty-nine".

Divisors: 1 3 9 13613 40839 122517 132757 398271 1194813 1807221041 5421663123 16264989369