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71016497 = 177952879
BaseRepresentation
bin1000011101110…
…10000000110001
311221122000022122
410032322000301
5121140011442
611014044025
71521426116
oct416720061
9157560278
1071016497
11370a5822
121b949615
13119363c6
14960890d
15637bdd2
hex43ba031

71016497 has 8 divisors (see below), whose sum is σ = 76147200. Its totient is φ = 65991744.

The previous prime is 71016493. The next prime is 71016499. The reversal of 71016497 is 79461017.

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 71016497 - 22 = 71016493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71016493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25097 + ... + 27782.

It is an arithmetic number, because the mean of its divisors is an integer number (9518400).

Almost surely, 271016497 is an apocalyptic number.

It is an amenable number.

71016497 is a deficient number, since it is larger than the sum of its proper divisors (5130703).

71016497 is a wasteful number, since it uses less digits than its factorization.

71016497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52975.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 71016497 is about 8427.1286331704. The cubic root of 71016497 is about 414.1138433838.

The spelling of 71016497 in words is "seventy-one million, sixteen thousand, four hundred ninety-seven".

Divisors: 1 17 79 1343 52879 898943 4177441 71016497