Search a number
-
+
80393291 = 1113952579
BaseRepresentation
bin1001100101010…
…11010001001011
312121021101212022
410302223101023
5131040041131
611551035055
71664221526
oct462532113
9177241768
1080393291
114141a740
1222b0ba8b
131386a3c4
14a969bbd
1570d037b
hex4cab44b

80393291 has 8 divisors (see below), whose sum is σ = 88334400. Its totient is φ = 72557640.

The previous prime is 80393281. The next prime is 80393293. The reversal of 80393291 is 19239308.

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

It is a cyclic number.

It is not a de Polignac number, because 80393291 - 26 = 80393227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80393293) 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 7 ways as a sum of consecutive naturals, for example, 24761 + ... + 27818.

It is an arithmetic number, because the mean of its divisors is an integer number (11041800).

Almost surely, 280393291 is an apocalyptic number.

80393291 is a deficient number, since it is larger than the sum of its proper divisors (7941109).

80393291 is a wasteful number, since it uses less digits than its factorization.

80393291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52729.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 80393291 is about 8966.2305903875. The cubic root of 80393291 is about 431.5918838731.

The spelling of 80393291 in words is "eighty million, three hundred ninety-three thousand, two hundred ninety-one".

Divisors: 1 11 139 1529 52579 578369 7308481 80393291