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2012222023 = 73743180679
BaseRepresentation
bin111011111110000…
…0001001001000111
312012020100110200121
41313330001021013
513110112101043
6531400522411
7100602414340
oct16774011107
95166313617
102012222023
11942935209
12481a80407
13260b66426
1415135b0c7
15bb9c8ded
hex77f01247

2012222023 has 16 divisors (see below), whose sum is σ = 2416775680. Its totient is φ = 1639110816.

The previous prime is 2012221973. The next prime is 2012222027. The reversal of 2012222023 is 3202222102.

It is not a de Polignac number, because 2012222023 - 221 = 2010124871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012221988 and 2012222006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012222027) 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, 79203 + ... + 101476.

It is an arithmetic number, because the mean of its divisors is an integer number (151048480).

Almost surely, 22012222023 is an apocalyptic number.

2012222023 is a deficient number, since it is larger than the sum of its proper divisors (404553657).

2012222023 is a wasteful number, since it uses less digits than its factorization.

2012222023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180766.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2012222023 is about 44857.7977948093. The cubic root of 2012222023 is about 1262.4823036829.

Adding to 2012222023 its reverse (3202222102), we get a palindrome (5214444125).

The spelling of 2012222023 in words is "two billion, twelve million, two hundred twenty-two thousand, twenty-three".

Divisors: 1 7 37 43 259 301 1591 11137 180679 1264753 6685123 7769197 46795861 54384379 287460289 2012222023