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80287413 = 3179971579
BaseRepresentation
bin1001100100100…
…01011010110101
312121002000121220
410302101122311
5131023144123
611544500553
71663301043
oct462213265
9177060556
1080287413
1141358138
1222a7a759
131383115b
14a93d393
1570adce3
hex4c916b5

80287413 has 16 divisors (see below), whose sum is σ = 113532480. Its totient is φ = 50294016.

The previous prime is 80287409. The next prime is 80287429. The reversal of 80287413 is 31478208.

It is not a de Polignac number, because 80287413 - 22 = 80287409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80287433) 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 15 ways as a sum of consecutive naturals, for example, 50058 + ... + 51636.

It is an arithmetic number, because the mean of its divisors is an integer number (7095780).

Almost surely, 280287413 is an apocalyptic number.

It is an amenable number.

80287413 is a deficient number, since it is larger than the sum of its proper divisors (33245067).

80287413 is a wasteful number, since it uses less digits than its factorization.

80287413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 80287413 is about 8960.3243802889. The cubic root of 80287413 is about 431.4023317343.

The spelling of 80287413 in words is "eighty million, two hundred eighty-seven thousand, four hundred thirteen".

Divisors: 1 3 17 51 997 1579 2991 4737 16949 26843 50847 80529 1574263 4722789 26762471 80287413