Search a number
-
+
80842097 = 711548871
BaseRepresentation
bin1001101000110…
…00110101110001
312122010012111202
410310120311301
5131143421342
612004420545
72001101150
oct464306561
9178105452
1080842097
11416a6956
12230a7755
131399677b
14aa45597
15716d332
hex4d18d71

80842097 has 4 divisors (see below), whose sum is σ = 92390976. Its totient is φ = 69293220.

The previous prime is 80842061. The next prime is 80842109. The reversal of 80842097 is 79024808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80842097 - 28 = 80841841 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 80842097.

It is not an unprimeable number, because it can be changed into a prime (80842057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5774429 + ... + 5774442.

It is an arithmetic number, because the mean of its divisors is an integer number (23097744).

Almost surely, 280842097 is an apocalyptic number.

It is an amenable number.

80842097 is a deficient number, since it is larger than the sum of its proper divisors (11548879).

80842097 is a wasteful number, since it uses less digits than its factorization.

80842097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11548878.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 80842097 is about 8991.2233316718. The cubic root of 80842097 is about 432.3935332176.

The spelling of 80842097 in words is "eighty million, eight hundred forty-two thousand, ninety-seven".

Divisors: 1 7 11548871 80842097