[go: up one dir, main page]

Search a number
-
+
230542222 = 21031736469
BaseRepresentation
bin11011011110111…
…00101110001110
3121001210202110211
431233130232032
5433004322342
634513153034
75466401521
oct1557345616
9531722424
10230542222
11109153869
126525b77a
13389bc021
1422892bb8
151538dc17
hexdbdcb8e

230542222 has 16 divisors (see below), whose sum is σ = 351243360. Its totient is φ = 113474592.

The previous prime is 230542189. The next prime is 230542223. The reversal of 230542222 is 222245032.

It is a happy number.

It is a super-2 number, since 2×2305422222 = 106299432249394568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230542193 and 230542202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230542223) 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, 32404 + ... + 38872.

It is an arithmetic number, because the mean of its divisors is an integer number (21952710).

Almost surely, 2230542222 is an apocalyptic number.

230542222 is a deficient number, since it is larger than the sum of its proper divisors (120701138).

230542222 is a wasteful number, since it uses less digits than its factorization.

230542222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6747.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 230542222 is about 15183.6168945347. The cubic root of 230542222 is about 613.1736612420.

Adding to 230542222 its reverse (222245032), we get a palindrome (452787254).

The spelling of 230542222 in words is "two hundred thirty million, five hundred forty-two thousand, two hundred twenty-two".

Divisors: 1 2 103 173 206 346 6469 12938 17819 35638 666307 1119137 1332614 2238274 115271111 230542222