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2120001223 = 47149930091
BaseRepresentation
bin111111001011100…
…1010011011000111
312110202011012221211
41332113022123013
513320210014343
6550210552251
7103351466404
oct17627123307
95422135854
102120001223
1199875a32a
124b1b98687
1327a2a19c2
141617b52ab
15c61b879d
hex7e5ca6c7

2120001223 has 8 divisors (see below), whose sum is σ = 2166624000. Its totient is φ = 2073441720.

The previous prime is 2120001197. The next prime is 2120001229. The reversal of 2120001223 is 3221000212.

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 2120001223 - 29 = 2120000711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120001229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55408 + ... + 85498.

It is an arithmetic number, because the mean of its divisors is an integer number (270828000).

Almost surely, 22120001223 is an apocalyptic number.

2120001223 is a deficient number, since it is larger than the sum of its proper divisors (46622777).

2120001223 is a wasteful number, since it uses less digits than its factorization.

2120001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31637.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2120001223 is about 46043.4710138148. The cubic root of 2120001223 is about 1284.6319047414.

Adding to 2120001223 its reverse (3221000212), we get a palindrome (5341001435).

The spelling of 2120001223 in words is "two billion, one hundred twenty million, one thousand, two hundred twenty-three".

Divisors: 1 47 1499 30091 70453 1414277 45106409 2120001223