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85716001 = 712245143
BaseRepresentation
bin1010001101111…
…10110000100001
312222021211020201
411012332300201
5133420403001
612301105201
72060400610
oct506766041
9188254221
1085716001
1144425778
1224858201
13149b2037
14b553877
1577d2501
hex51bec21

85716001 has 4 divisors (see below), whose sum is σ = 97961152. Its totient is φ = 73470852.

The previous prime is 85715969. The next prime is 85716017. The reversal of 85716001 is 10061758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85716001 - 25 = 85715969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85716031) 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 3 ways as a sum of consecutive naturals, for example, 6122565 + ... + 6122578.

It is an arithmetic number, because the mean of its divisors is an integer number (24490288).

Almost surely, 285716001 is an apocalyptic number.

It is an amenable number.

85716001 is a deficient number, since it is larger than the sum of its proper divisors (12245151).

85716001 is a wasteful number, since it uses less digits than its factorization.

85716001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12245150.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 85716001 is about 9258.2936332782. The cubic root of 85716001 is about 440.9140794110.

Adding to 85716001 its reverse (10061758), we get a palindrome (95777759).

The spelling of 85716001 in words is "eighty-five million, seven hundred sixteen thousand, one".

Divisors: 1 7 12245143 85716001