Search a number
-
+
12469889 = 113211523
BaseRepresentation
bin101111100100…
…011010000001
3212110112110202
4233210122001
511143014024
61123134545
7210664235
oct57443201
925415422
1012469889
1170478a3
124214455
132777b43
1419285c5
151164bae
hexbe4681

12469889 has 8 divisors (see below), whose sum is σ = 12664032. Its totient is φ = 12277440.

The previous prime is 12469883. The next prime is 12469907. The reversal of 12469889 is 98896421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12469889 is a prime.

It is a super-3 number, since 3×124698893 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12469883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23582 + ... + 24104.

It is an arithmetic number, because the mean of its divisors is an integer number (1583004).

Almost surely, 212469889 is an apocalyptic number.

It is an amenable number.

12469889 is a deficient number, since it is larger than the sum of its proper divisors (194143).

12469889 is a wasteful number, since it uses less digits than its factorization.

12469889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 248832, while the sum is 47.

The square root of 12469889 is about 3531.2729999251. The cubic root of 12469889 is about 231.8929413396.

The spelling of 12469889 in words is "twelve million, four hundred sixty-nine thousand, eight hundred eighty-nine".

Divisors: 1 113 211 523 23843 59099 110353 12469889