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2012120120 = 23571708493
BaseRepresentation
bin111011111101110…
…1000010000111000
312012020011021220102
41313323220100320
513110100320440
6531354414532
7100601511263
oct16773502070
95166137812
102012120120
1194287569a
12481a31448
13260b2bc2a
14151331cda
15bb9a8b15
hex77ee8438

2012120120 has 32 divisors (see below), whose sum is σ = 4591041120. Its totient is φ = 793511040.

The previous prime is 2012120111. The next prime is 2012120147. The reversal of 2012120120 is 210212102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351407 + ... + 357086.

It is an arithmetic number, because the mean of its divisors is an integer number (143470035).

Almost surely, 22012120120 is an apocalyptic number.

2012120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012120120 is an abundant number, since it is smaller than the sum of its proper divisors (2578921000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2012120120 is a wasteful number, since it uses less digits than its factorization.

2012120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708575 (or 708571 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2012120120 is about 44856.6619355475. The cubic root of 2012120120 is about 1262.4609917693.

Adding to 2012120120 its reverse (210212102), we get a palindrome (2222332222).

The spelling of 2012120120 in words is "two billion, twelve million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 708493 1416986 2833972 3542465 5667944 7084930 14169860 28339720 50303003 100606006 201212012 251515015 402424024 503030030 1006060060 2012120120