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80119489 = 292762741
BaseRepresentation
bin1001100011010…
…00011011000001
312120202111021111
410301220123001
5131002310424
611541123321
71662001342
oct461503301
9176674244
1080119489
1141252a5a
12229b9541
13137a28a8
14a8d80c9
157079194
hex4c686c1

80119489 has 4 divisors (see below), whose sum is σ = 82882260. Its totient is φ = 77356720.

The previous prime is 80119441. The next prime is 80119499. The reversal of 80119489 is 98491108.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63473089 + 16646400 = 7967^2 + 4080^2 .

It is a cyclic number.

It is not a de Polignac number, because 80119489 - 223 = 71730881 is a prime.

It is a super-2 number, since 2×801194892 = 12838265035242242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80119439) 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 3 ways as a sum of consecutive naturals, for example, 1381342 + ... + 1381399.

It is an arithmetic number, because the mean of its divisors is an integer number (20720565).

Almost surely, 280119489 is an apocalyptic number.

It is an amenable number.

80119489 is a deficient number, since it is larger than the sum of its proper divisors (2762771).

80119489 is a wasteful number, since it uses less digits than its factorization.

80119489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762770.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 80119489 is about 8950.9490558264. The cubic root of 80119489 is about 431.1013573276.

It can be divided in two parts, 80119 and 489, that added together give a palindrome (80608).

The spelling of 80119489 in words is "eighty million, one hundred nineteen thousand, four hundred eighty-nine".

Divisors: 1 29 2762741 80119489