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2012001210 = 232533766337
BaseRepresentation
bin111011111101100…
…1011001110111010
312012012221020210100
41313323023032322
513110033014320
6531352100230
7100600504512
oct16773131672
95165836710
102012001210
119427a431a
12481994676
13260ab9a7b
14151300842
15bb983790
hex77ecb3ba

2012001210 has 48 divisors (see below), whose sum is σ = 5246805096. Its totient is φ = 534933504.

The previous prime is 2012001209. The next prime is 2012001217. The reversal of 2012001210 is 121002102.

It can be written as a sum of positive squares in 4 ways, for example, as 1421365401 + 590635809 = 37701^2 + 24303^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2012001192 and 2012001201.

It is not an unprimeable number, because it can be changed into a prime (2012001217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2839 + ... + 63498.

Almost surely, 22012001210 is an apocalyptic number.

2012001210 is an abundant number, since it is smaller than the sum of its proper divisors (3234803886).

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

2012001210 is a wasteful number, since it uses less digits than its factorization.

2012001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66687 (or 66684 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2012001210 is about 44855.3364718179. The cubic root of 2012001210 is about 1262.4361221153.

Adding to 2012001210 its reverse (121002102), we get a palindrome (2133003312).

The spelling of 2012001210 in words is "two billion, twelve million, one thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 337 674 1011 1685 2022 3033 3370 5055 6066 10110 15165 30330 66337 132674 199011 331685 398022 597033 663370 995055 1194066 1990110 2985165 5970330 22355569 44711138 67066707 111777845 134133414 201200121 223555690 335333535 402400242 670667070 1006000605 2012001210