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2012210023 = 25129327361
BaseRepresentation
bin111011111101111…
…1110001101100111
312012020022212020011
41313323332031213
513110111210043
6531400351051
7100602334345
oct16773761547
95166285204
102012210023
1194292719a
12481a75487
13260b60b25
14151356995
15bb9c559d
hex77efe367

2012210023 has 8 divisors (see below), whose sum is σ = 2027195856. Its totient is φ = 1997280000.

The previous prime is 2012210017. The next prime is 2012210041. The reversal of 2012210023 is 3200122102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012210023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012209985 and 2012210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012210003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59863 + ... + 87223.

It is an arithmetic number, because the mean of its divisors is an integer number (253399482).

Almost surely, 22012210023 is an apocalyptic number.

2012210023 is a deficient number, since it is larger than the sum of its proper divisors (14985833).

2012210023 is a wasteful number, since it uses less digits than its factorization.

2012210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27905.

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

The square root of 2012210023 is about 44857.6640386010. The cubic root of 2012210023 is about 1262.4797940497.

Adding to 2012210023 its reverse (3200122102), we get a palindrome (5212332125).

The spelling of 2012210023 in words is "two billion, twelve million, two hundred ten thousand, twenty-three".

Divisors: 1 251 293 27361 73543 6867611 8016773 2012210023