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7402223 is a prime number
BaseRepresentation
bin11100001111001011101111
3111221001221102
4130033023233
53343332343
6422353315
7116626553
oct34171357
914831842
107402223
1141a6444
12258b83b
1316c231a
14da9863
159b33b8
hex70f2ef

7402223 has 2 divisors, whose sum is σ = 7402224. Its totient is φ = 7402222.

The previous prime is 7402217. The next prime is 7402231. The reversal of 7402223 is 3222047.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7402223 - 24 = 7402207 is a prime.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 7402195 and 7402204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7402253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3701111 + 3701112.

It is an arithmetic number, because the mean of its divisors is an integer number (3701112).

Almost surely, 27402223 is an apocalyptic number.

7402223 is a deficient number, since it is larger than the sum of its proper divisors (1).

7402223 is an equidigital number, since it uses as much as digits as its factorization.

7402223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 7402223 is about 2720.7026665918. The cubic root of 7402223 is about 194.8890273691.

The spelling of 7402223 in words is "seven million, four hundred two thousand, two hundred twenty-three".