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2228309801 = 29367720897
BaseRepresentation
bin1000010011010001…
…0100111100101001
312202021221212101122
42010310110330221
514030421403201
61005040225025
7106135215014
oct20464247451
95667855348
102228309801
11a43906153
1252230b175
13296864213
14171d2a37b
15d095ee1b
hex84d14f29

2228309801 has 8 divisors (see below), whose sum is σ = 2305885320. Its totient is φ = 2150783488.

The previous prime is 2228309771. The next prime is 2228309807. The reversal of 2228309801 is 1089038222.

It can be written as a sum of positive squares in 4 ways, for example, as 734410000 + 1493899801 = 27100^2 + 38651^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2228309801 - 26 = 2228309737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2228309807) 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, 96185 + ... + 117081.

It is an arithmetic number, because the mean of its divisors is an integer number (288235665).

Almost surely, 22228309801 is an apocalyptic number.

It is an amenable number.

2228309801 is a deficient number, since it is larger than the sum of its proper divisors (77575519).

2228309801 is a wasteful number, since it uses less digits than its factorization.

2228309801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24603.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2228309801 is about 47204.9764431675. The cubic root of 2228309801 is about 1306.1463972043.

The spelling of 2228309801 in words is "two billion, two hundred twenty-eight million, three hundred nine thousand, eight hundred one".

Divisors: 1 29 3677 20897 106633 606013 76838269 2228309801