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2120320223 = 71719193287
BaseRepresentation
bin111111001100001…
…1000010011011111
312110202202102112122
41332120120103133
513320300221343
6550221453155
7103354265420
oct17630302337
95422672478
102120320223
11998957a6a
124b21111bb
1327a383c68
14161859647
15c622d068
hex7e6184df

2120320223 has 16 divisors (see below), whose sum is σ = 2579226624. Its totient is φ = 1701536640.

The previous prime is 2120320217. The next prime is 2120320243. The reversal of 2120320223 is 3220230212.

It is a cyclic number.

It is not a de Polignac number, because 2120320223 - 212 = 2120316127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120320243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23915 + ... + 69372.

It is an arithmetic number, because the mean of its divisors is an integer number (161201664).

Almost surely, 22120320223 is an apocalyptic number.

2120320223 is a deficient number, since it is larger than the sum of its proper divisors (458906401).

2120320223 is a wasteful number, since it uses less digits than its factorization.

2120320223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93502.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2120320223 is about 46046.9350011486. The cubic root of 2120320223 is about 1284.6963350541.

Adding to 2120320223 its reverse (3220230212), we get a palindrome (5340550435).

The spelling of 2120320223 in words is "two billion, one hundred twenty million, three hundred twenty thousand, two hundred twenty-three".

Divisors: 1 7 17 119 191 1337 3247 22729 93287 653009 1585879 11101153 17817817 124724719 302902889 2120320223