Search a number
-
+
12305873 = 19363761
BaseRepresentation
bin101110111100…
…010111010001
3212011012111002
4232330113101
511122241443
61115431345
7206412116
oct56742721
925135432
1012305873
116a45648
124155555
13271b2a8
1418c490d
1511312b8
hexbbc5d1

12305873 has 4 divisors (see below), whose sum is σ = 12369828. Its totient is φ = 12241920.

The previous prime is 12305861. The next prime is 12305879. The reversal of 12305873 is 37850321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6115729 + 6190144 = 2473^2 + 2488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12305873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12305879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31688 + ... + 32073.

It is an arithmetic number, because the mean of its divisors is an integer number (3092457).

Almost surely, 212305873 is an apocalyptic number.

It is an amenable number.

12305873 is a deficient number, since it is larger than the sum of its proper divisors (63955).

12305873 is an equidigital number, since it uses as much as digits as its factorization.

12305873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63954.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 12305873 is about 3507.9727764052. The cubic root of 12305873 is about 230.8717578068.

The spelling of 12305873 in words is "twelve million, three hundred five thousand, eight hundred seventy-three".

Divisors: 1 193 63761 12305873