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8223996 = 2231162303
BaseRepresentation
bin11111010111110011111100
3120110211012110
4133113303330
54101131441
6452134020
7126621444
oct37276374
916424173
108223996
1147078a0
122907310
13191c391
141141124
15ac6b16
hex7d7cfc

8223996 has 24 divisors (see below), whose sum is σ = 20934144. Its totient is φ = 2492080.

The previous prime is 8223991. The next prime is 8223997. The reversal of 8223996 is 6993228.

It is a super-2 number, since 2×82239962 = 135268220416032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31020 + ... + 31283.

It is an arithmetic number, because the mean of its divisors is an integer number (872256).

Almost surely, 28223996 is an apocalyptic number.

It is an amenable number.

8223996 is an abundant number, since it is smaller than the sum of its proper divisors (12710148).

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

8223996 is a wasteful number, since it uses less digits than its factorization.

8223996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62321 (or 62319 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 8223996 is about 2867.7510352191. The cubic root of 8223996 is about 201.8494777743.

It can be divided in two parts, 822399 and 6, that multiplied together give a palindrome (4934394).

The spelling of 8223996 in words is "eight million, two hundred twenty-three thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 62303 124606 186909 249212 373818 685333 747636 1370666 2055999 2741332 4111998 8223996