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9022506661 = 72184132789
BaseRepresentation
bin10000110011100100…
…01000011010100101
3212021210102211100101
420121302020122211
5121434230203121
64051143344101
7436405020100
oct103162103245
925253384311
109022506661
11390aa73883
1218b9752031
13b0a33064c
146183d3737
1537c175491
hex219c886a5

9022506661 has 6 divisors (see below), whose sum is σ = 10495569030. Its totient is φ = 7733577096.

The previous prime is 9022506659. The next prime is 9022506683. The reversal of 9022506661 is 1666052209.

It can be written as a sum of positive squares in only one way, i.e., 4677192100 + 4345314561 = 68390^2 + 65919^2 .

It is not a de Polignac number, because 9022506661 - 21 = 9022506659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9022506661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9022506601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92066346 + ... + 92066443.

It is an arithmetic number, because the mean of its divisors is an integer number (1749261505).

Almost surely, 29022506661 is an apocalyptic number.

It is an amenable number.

9022506661 is a deficient number, since it is larger than the sum of its proper divisors (1473062369).

9022506661 is a wasteful number, since it uses less digits than its factorization.

9022506661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184132803 (or 184132796 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 9022506661 is about 94986.8762566703. The cubic root of 9022506661 is about 2081.8162960488.

The spelling of 9022506661 in words is "nine billion, twenty-two million, five hundred six thousand, six hundred sixty-one".

Divisors: 1 7 49 184132789 1288929523 9022506661