Search a number
-
+
12163969 = 43457619
BaseRepresentation
bin101110011001…
…101110000001
3211212222211101
4232121232001
511103221334
61112414401
7205251316
oct56315601
924788741
1012163969
116958a74
1240a7401
13269b81c
141888d0d
151104214
hexb99b81

12163969 has 8 divisors (see below), whose sum is σ = 12494240. Its totient is φ = 11835936.

The previous prime is 12163961. The next prime is 12163973. The reversal of 12163969 is 96936121.

12163969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12163969 - 23 = 12163961 is a prime.

It is a super-2 number, since 2×121639692 = 295924283665922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12163961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19342 + ... + 19960.

It is an arithmetic number, because the mean of its divisors is an integer number (1561780).

Almost surely, 212163969 is an apocalyptic number.

It is an amenable number.

12163969 is a deficient number, since it is larger than the sum of its proper divisors (330271).

12163969 is an equidigital number, since it uses as much as digits as its factorization.

12163969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its digits is 17496, while the sum is 37.

The square root of 12163969 is about 3487.6882028071. The cubic root of 12163969 is about 229.9808994850.

The spelling of 12163969 in words is "twelve million, one hundred sixty-three thousand, nine hundred sixty-nine".

Divisors: 1 43 457 619 19651 26617 282883 12163969