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80494101 = 332981263
BaseRepresentation
bin1001100110000…
…11111000010101
312121110112011000
410303003320111
5131101302401
611553133513
71665121452
oct463037025
9177415130
1080494101
1141489456
1222b5a299
13138a425c
14a994829
157100186
hex4cc3e15

80494101 has 8 divisors (see below), whose sum is σ = 119250560. Its totient is φ = 53662716.

The previous prime is 80494093. The next prime is 80494103. The reversal of 80494101 is 10149408.

It is not a de Polignac number, because 80494101 - 23 = 80494093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2981263 = 80494101 / (8 + 0 + 4 + 9 + 4 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80494103) 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, 1490605 + ... + 1490658.

It is an arithmetic number, because the mean of its divisors is an integer number (14906320).

Almost surely, 280494101 is an apocalyptic number.

It is an amenable number.

80494101 is a deficient number, since it is larger than the sum of its proper divisors (38756459).

80494101 is a wasteful number, since it uses less digits than its factorization.

80494101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981272 (or 2981266 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 80494101 is about 8971.8504780229. The cubic root of 80494101 is about 431.7722082254.

The spelling of 80494101 in words is "eighty million, four hundred ninety-four thousand, one hundred one".

Divisors: 1 3 9 27 2981263 8943789 26831367 80494101