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9005297889 = 37428823709
BaseRepresentation
bin10000110001100000…
…11111000011100001
3212020121001112100110
420120300133003201
5121420324013024
64045330441533
7436105524540
oct103060370341
925217045313
109005297889
11390128a655
1218b3a332a9
13b068b6843
14615dd4157
1537a8c6629
hex218c1f0e1

9005297889 has 8 divisors (see below), whose sum is σ = 13722358720. Its totient is φ = 5145884496.

The previous prime is 9005297869. The next prime is 9005297891. The reversal of 9005297889 is 9887925009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9005297889 - 28 = 9005297633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9005297869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214411834 + ... + 214411875.

It is an arithmetic number, because the mean of its divisors is an integer number (1715294840).

Almost surely, 29005297889 is an apocalyptic number.

It is an amenable number.

9005297889 is a deficient number, since it is larger than the sum of its proper divisors (4717060831).

9005297889 is a wasteful number, since it uses less digits than its factorization.

9005297889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428823719.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The square root of 9005297889 is about 94896.2480238286. The cubic root of 9005297889 is about 2080.4918931104.

The spelling of 9005297889 in words is "nine billion, five million, two hundred ninety-seven thousand, eight hundred eighty-nine".

Divisors: 1 3 7 21 428823709 1286471127 3001765963 9005297889