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7223081 = 231033049
BaseRepresentation
bin11011100011011100101001
3111120222012112
4123203130221
53322114311
6414452105
7115252355
oct33433451
914528175
107223081
114093898
122504035
13165b918
14d60465
1597a28b
hex6e3729

7223081 has 8 divisors (see below), whose sum is σ = 7612800. Its totient is φ = 6839712.

The previous prime is 7223053. The next prime is 7223087. The reversal of 7223081 is 1803227.

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 7223081 - 26 = 7223017 is a prime.

It is a super-2 number, since 2×72230812 = 104345798265122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7223087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (951600).

Almost surely, 27223081 is an apocalyptic number.

It is an amenable number.

7223081 is a deficient number, since it is larger than the sum of its proper divisors (389719).

7223081 is a wasteful number, since it uses less digits than its factorization.

7223081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 7223081 is about 2687.5790220940. The cubic root of 7223081 is about 193.3039944250.

The spelling of 7223081 in words is "seven million, two hundred twenty-three thousand, eighty-one".

Divisors: 1 23 103 2369 3049 70127 314047 7223081