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8028219 = 323116351
BaseRepresentation
bin11110101000000000111011
3120002212122110
4132220000323
54023400334
6444023403
7125144613
oct36500073
916085573
108028219
1145937a1
122831b63
131881234
1410cda43
15a88ae9
hex7a803b

8028219 has 8 divisors (see below), whose sum is σ = 11169792. Its totient is φ = 5119400.

The previous prime is 8028193. The next prime is 8028227. The reversal of 8028219 is 9128208.

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 8028219 - 211 = 8026171 is a prime.

It is a super-2 number, since 2×80282192 = 128904600623922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8028259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58107 + ... + 58244.

It is an arithmetic number, because the mean of its divisors is an integer number (1396224).

Almost surely, 28028219 is an apocalyptic number.

8028219 is a deficient number, since it is larger than the sum of its proper divisors (3141573).

8028219 is a wasteful number, since it uses less digits than its factorization.

8028219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116377.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8028219 is about 2833.4111950086. The cubic root of 8028219 is about 200.2348823767.

The spelling of 8028219 in words is "eight million, twenty-eight thousand, two hundred nineteen".

Divisors: 1 3 23 69 116351 349053 2676073 8028219