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9006000001 = 77719115879
BaseRepresentation
bin10000110001100110…
…01010011110000001
3212020122101012110121
420120303022132001
5121421014000001
64045353500241
7436114510525
oct103063123601
925218335417
109006000001
11390171a109
1218b4111681
13b06aa12ab
14616137d85
1537a9b46a1
hex218cca781

9006000001 has 4 divisors (see below), whose sum is σ = 9006193600. Its totient is φ = 9005806404.

The previous prime is 9005999993. The next prime is 9006000011. The reversal of 9006000001 is 1000006009.

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: 1000006009 = 1907524387.

It is a cyclic number.

It is not a de Polignac number, because 9006000001 - 23 = 9005999993 is a prime.

It is a super-2 number, since 2×90060000012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9006000011) 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, 19780 + ... + 135658.

It is an arithmetic number, because the mean of its divisors is an integer number (2251548400).

Almost surely, 29006000001 is an apocalyptic number.

It is an amenable number.

9006000001 is a deficient number, since it is larger than the sum of its proper divisors (193599).

9006000001 is a wasteful number, since it uses less digits than its factorization.

9006000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193598.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 9006000001 is about 94899.9473182151. The cubic root of 9006000001 is about 2080.5459612963.

The spelling of 9006000001 in words is "nine billion, six million, one", and thus it is an aban number and an uban number.

Divisors: 1 77719 115879 9006000001