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80199563 = 191419893
BaseRepresentation
bin1001100011110…
…11111110001011
312120220120010012
410301323332023
5131012341223
611542542135
71662453653
oct461737613
9176816105
1080199563
11412a8134
1222a3794b
1313800182
14a919363
157092c78
hex4c7bf8b

80199563 has 4 divisors (see below), whose sum is σ = 80619648. Its totient is φ = 79779480.

The previous prime is 80199517. The next prime is 80199569. The reversal of 80199563 is 36599108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80199563 - 214 = 80183179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80199563.

It is not an unprimeable number, because it can be changed into a prime (80199569) 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 3 ways as a sum of consecutive naturals, for example, 209756 + ... + 210137.

It is an arithmetic number, because the mean of its divisors is an integer number (20154912).

Almost surely, 280199563 is an apocalyptic number.

80199563 is a deficient number, since it is larger than the sum of its proper divisors (420085).

80199563 is a wasteful number, since it uses less digits than its factorization.

80199563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420084.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 80199563 is about 8955.4208722985. The cubic root of 80199563 is about 431.2449283728.

The spelling of 80199563 in words is "eighty million, one hundred ninety-nine thousand, five hundred sixty-three".

Divisors: 1 191 419893 80199563