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80494331 = 179449689
BaseRepresentation
bin1001100110000…
…11111011111011
312121110112110112
410303003323323
5131101304311
611553134535
71665122231
oct463037373
9177415415
1080494331
1141489645
1222b5a44b
13138a43a8
14a994951
15710028b
hex4cc3efb

80494331 has 4 divisors (see below), whose sum is σ = 80944200. Its totient is φ = 80044464.

The previous prime is 80494283. The next prime is 80494339. The reversal of 80494331 is 13349408.

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

It is a cyclic number.

It is not a de Polignac number, because 80494331 - 222 = 76300027 is a prime.

It is a super-2 number, since 2×804943312 = 12958674646275122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80494339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224666 + ... + 225023.

It is an arithmetic number, because the mean of its divisors is an integer number (20236050).

Almost surely, 280494331 is an apocalyptic number.

80494331 is a deficient number, since it is larger than the sum of its proper divisors (449869).

80494331 is a wasteful number, since it uses less digits than its factorization.

80494331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449868.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 80494331 is about 8971.8632958823. The cubic root of 80494331 is about 431.7726194667.

The spelling of 80494331 in words is "eighty million, four hundred ninety-four thousand, three hundred thirty-one".

Divisors: 1 179 449689 80494331