Search a number
-
+
7123230 = 232579147
BaseRepresentation
bin11011001011000100011110
3111101220020100
4123023010132
53310420410
6412401530
7114355302
oct33130436
914356210
107123230
114025874
1224762a6
13162533a
14d35d02
1595a8c0
hex6cb11e

7123230 has 24 divisors (see below), whose sum is σ = 18520632. Its totient is φ = 1899504.

The previous prime is 7123229. The next prime is 7123231. The reversal of 7123230 is 323217.

7123230 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7123229) and next prime (7123231).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7123231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39484 + ... + 39663.

It is an arithmetic number, because the mean of its divisors is an integer number (771693).

Almost surely, 27123230 is an apocalyptic number.

7123230 is an abundant number, since it is smaller than the sum of its proper divisors (11397402).

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

7123230 is a wasteful number, since it uses less digits than its factorization.

7123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79160 (or 79157 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 7123230 is about 2668.9379910369. The cubic root of 7123230 is about 192.4091210992.

Adding to 7123230 its reverse (323217), we get a palindrome (7446447).

The spelling of 7123230 in words is "seven million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 79147 158294 237441 395735 474882 712323 791470 1187205 1424646 2374410 3561615 7123230