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9071001601 = 82710968563
BaseRepresentation
bin10000111001010110…
…01000000000000001
3212102011200121220021
420130223020000001
5122034134022401
64100035013441
7440534145544
oct103453100001
925364617807
109071001601
113935386842
121911a3a281
13b173ac98c
14620a1885b
153815542a1
hex21cac8001

9071001601 has 4 divisors (see below), whose sum is σ = 9081970992. Its totient is φ = 9060032212.

The previous prime is 9071001587. The next prime is 9071001623. The reversal of 9071001601 is 1061001709.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1061001709 = 2053351673.

It is a cyclic number.

It is not a de Polignac number, because 9071001601 - 233 = 481067009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9071001301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5483455 + ... + 5485108.

It is an arithmetic number, because the mean of its divisors is an integer number (2270492748).

Almost surely, 29071001601 is an apocalyptic number.

It is an amenable number.

9071001601 is a deficient number, since it is larger than the sum of its proper divisors (10969391).

9071001601 is a wasteful number, since it uses less digits than its factorization.

9071001601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10969390.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 9071001601 is about 95241.8059520083. The cubic root of 9071001601 is about 2085.5394748321.

The spelling of 9071001601 in words is "nine billion, seventy-one million, one thousand, six hundred one".

Divisors: 1 827 10968563 9071001601