Search a number
-
+
80131027 = 591358153
BaseRepresentation
bin1001100011010…
…11001111010011
312120210002002211
410301223033103
5131003143102
611541252551
71662050104
oct461531723
9176702084
1080131027
1141260699
1222a04157
13137a7c12
14a8dc3ab
15707c7d7
hex4c6b3d3

80131027 has 4 divisors (see below), whose sum is σ = 81489240. Its totient is φ = 78772816.

The previous prime is 80130983. The next prime is 80131039. The reversal of 80131027 is 72013108.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80131027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80130989 and 80131007.

It is not an unprimeable number, because it can be changed into a prime (80131067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679018 + ... + 679135.

It is an arithmetic number, because the mean of its divisors is an integer number (20372310).

Almost surely, 280131027 is an apocalyptic number.

80131027 is a deficient number, since it is larger than the sum of its proper divisors (1358213).

80131027 is a wasteful number, since it uses less digits than its factorization.

80131027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358212.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 80131027 is about 8951.5935452857. The cubic root of 80131027 is about 431.1220506227.

The spelling of 80131027 in words is "eighty million, one hundred thirty-one thousand, twenty-seven".

Divisors: 1 59 1358153 80131027