Search a number
-
+
80138967 = 345075927
BaseRepresentation
bin1001100011011…
…01001011010111
312120210110222220
410301231023113
5131003421332
611541353423
71662112206
oct461551327
9176713886
1080138967
1141266657
1222a08873
13137ab70c
14a90123d
15707ed2c
hex4c6d2d7

80138967 has 8 divisors (see below), whose sum is σ = 106893696. Its totient is φ = 53405112.

The previous prime is 80138959. The next prime is 80138983. The reversal of 80138967 is 76983108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80138967 - 23 = 80138959 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80138167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10558 + ... + 16484.

It is an arithmetic number, because the mean of its divisors is an integer number (13361712).

Almost surely, 280138967 is an apocalyptic number.

80138967 is a deficient number, since it is larger than the sum of its proper divisors (26754729).

80138967 is a wasteful number, since it uses less digits than its factorization.

80138967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10437.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80138967 is about 8952.0370307545. The cubic root of 80138967 is about 431.1362897848.

The spelling of 80138967 in words is "eighty million, one hundred thirty-eight thousand, nine hundred sixty-seven".

Divisors: 1 3 4507 5927 13521 17781 26712989 80138967