Search a number
-
+
7222032 = 243250153
BaseRepresentation
bin11011100011001100010000
3111120220202200
4123203030100
53322101112
6414443200
7115246326
oct33431420
914526680
107222032
114093024
122503500
13165b2bc
14d5dd16
15979cdc
hex6e3310

7222032 has 30 divisors (see below), whose sum is σ = 20212062. Its totient is φ = 2407296.

The previous prime is 7222031. The next prime is 7222037. The reversal of 7222032 is 2302227.

It can be written as a sum of positive squares in only one way, i.e., 6230016 + 992016 = 2496^2 + 996^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7221996 and 7222014.

It is not an unprimeable number, because it can be changed into a prime (7222031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24933 + ... + 25220.

Almost surely, 27222032 is an apocalyptic number.

7222032 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7222032 is an abundant number, since it is smaller than the sum of its proper divisors (12990030).

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

7222032 is a wasteful number, since it uses less digits than its factorization.

7222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50167 (or 50158 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 7222032 is about 2687.3838579555. The cubic root of 7222032 is about 193.2946361974.

Adding to 7222032 its reverse (2302227), we get a palindrome (9524259).

The spelling of 7222032 in words is "seven million, two hundred twenty-two thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 50153 100306 150459 200612 300918 401224 451377 601836 802448 902754 1203672 1805508 2407344 3611016 7222032