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2302020221 = 19539922441
BaseRepresentation
bin1000100100110110…
…0000101001111101
312221102122202002012
42021031200221331
514203304121341
61020232141005
7111021564134
oct21115405175
95842582065
102302020221
11a81480956
12542b37765
132a8c01857
1417ba3691b
15d71700eb
hex89360a7d

2302020221 has 8 divisors (see below), whose sum is σ = 2423736000. Its totient is φ = 2180360160.

The previous prime is 2302020181. The next prime is 2302020223. The reversal of 2302020221 is 1220202032.

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 2302020221 - 210 = 2302019197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2302020196 and 2302020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302020223) 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, 91361 + ... + 113801.

It is an arithmetic number, because the mean of its divisors is an integer number (302967000).

Almost surely, 22302020221 is an apocalyptic number.

It is an amenable number.

2302020221 is a deficient number, since it is larger than the sum of its proper divisors (121715779).

2302020221 is a wasteful number, since it uses less digits than its factorization.

2302020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27859.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2302020221 is about 47979.3728700157. The cubic root of 2302020221 is about 1320.3924875489.

Adding to 2302020221 its reverse (1220202032), we get a palindrome (3522222253).

The spelling of 2302020221 in words is "two billion, three hundred two million, twenty thousand, two hundred twenty-one".

Divisors: 1 19 5399 22441 102581 426379 121158959 2302020221