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80134605 = 3255633163
BaseRepresentation
bin1001100011011…
…00000111001101
312120210021000100
410301230013031
5131003301410
611541321313
71662063405
oct461540715
9176707010
1080134605
1141263351
1222a06239
13137a9735
14a8dd805
15707d8c0
hex4c6c1cd

80134605 has 24 divisors (see below), whose sum is σ = 139190688. Its totient is φ = 42649056.

The previous prime is 80134603. The next prime is 80134661. The reversal of 80134605 is 50643108.

It is not a de Polignac number, because 80134605 - 21 = 80134603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80134603) 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 23 ways as a sum of consecutive naturals, for example, 23754 + ... + 26916.

It is an arithmetic number, because the mean of its divisors is an integer number (5799612).

Almost surely, 280134605 is an apocalyptic number.

It is an amenable number.

80134605 is a deficient number, since it is larger than the sum of its proper divisors (59056083).

80134605 is a wasteful number, since it uses less digits than its factorization.

80134605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737 (or 3734 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 80134605 is about 8951.7933957392. The cubic root of 80134605 is about 431.1284673288.

The spelling of 80134605 in words is "eighty million, one hundred thirty-four thousand, six hundred five".

Divisors: 1 3 5 9 15 45 563 1689 2815 3163 5067 8445 9489 15815 25335 28467 47445 142335 1780769 5342307 8903845 16026921 26711535 80134605