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8040223 = 4124783
BaseRepresentation
bin11110101010111100011111
3120010111010001
4132222330133
54024241343
6444155131
7125224612
oct36527437
916114101
108040223
1145a1814
122838aa7
131886839
1410d4179
15a8c44d
hex7aaf1f

8040223 has 6 divisors (see below), whose sum is σ = 8242832. Its totient is φ = 7842480.

The previous prime is 8040217. The next prime is 8040229. The reversal of 8040223 is 3220408.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8040217) and next prime (8040229).

It is not a de Polignac number, because 8040223 - 29 = 8039711 is a prime.

It is a Duffinian number.

8040223 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8040223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8040229) 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, 711 + ... + 4072.

Almost surely, 28040223 is an apocalyptic number.

8040223 is a deficient number, since it is larger than the sum of its proper divisors (202609).

8040223 is an equidigital number, since it uses as much as digits as its factorization.

8040223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865 (or 4824 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 8040223 is about 2835.5286984970. The cubic root of 8040223 is about 200.3346314633.

The spelling of 8040223 in words is "eight million, forty thousand, two hundred twenty-three".

Divisors: 1 41 1681 4783 196103 8040223