Search a number
-
+
12182838 = 2319106867
BaseRepresentation
bin101110011110…
…010100110110
3211220221201020
4232132110312
511104322323
61113042010
7205360323
oct56362466
924827636
1012182838
116971168
1240b6306
1326a72a5
141891b4a
151109ae3
hexb9e536

12182838 has 16 divisors (see below), whose sum is σ = 25648320. Its totient is φ = 3847176.

The previous prime is 12182837. The next prime is 12182839. The reversal of 12182838 is 83828121.

It is an interprime number because it is at equal distance from previous prime (12182837) and next prime (12182839).

It is a junction number, because it is equal to n+sod(n) for n = 12182799 and 12182808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12182837) 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, 53320 + ... + 53547.

It is an arithmetic number, because the mean of its divisors is an integer number (1603020).

Almost surely, 212182838 is an apocalyptic number.

12182838 is an abundant number, since it is smaller than the sum of its proper divisors (13465482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12182838 is a wasteful number, since it uses less digits than its factorization.

12182838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106891.

The product of its digits is 6144, while the sum is 33.

The square root of 12182838 is about 3490.3922415683. The cubic root of 12182838 is about 230.0997550899.

The spelling of 12182838 in words is "twelve million, one hundred eighty-two thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 19 38 57 114 106867 213734 320601 641202 2030473 4060946 6091419 12182838