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12012000200 = 2352122948869
BaseRepresentation
bin10110010111111100…
…01001001111001000
31011000010200211112022
423023332021033020
5144100033001300
65303534504012
7603445213514
oct131376111710
934003624468
1012012000200
1151045085a2
1223b2965008
1311957a6935
1481d463144
154a4841285
hex2cbf893c8

12012000200 has 48 divisors (see below), whose sum is σ = 27951196500. Its totient is φ = 4800792320.

The previous prime is 12012000197. The next prime is 12012000211. The reversal of 12012000200 is 200021021.

It can be written as a sum of positive squares in 6 ways, for example, as 6604162756 + 5407837444 = 81266^2 + 73538^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221366 + ... + 270234.

Almost surely, 212012000200 is an apocalyptic number.

12012000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012000200 is an abundant number, since it is smaller than the sum of its proper divisors (15939196300).

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

12012000200 is a wasteful number, since it uses less digits than its factorization.

12012000200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50114 (or 50105 counting only the distinct ones).

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

Adding to 12012000200 its reverse (200021021), we get a palindrome (12212021221).

The spelling of 12012000200 in words is "twelve billion, twelve million, two hundred", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1229 2458 4916 6145 9832 12290 24580 30725 48869 49160 61450 97738 122900 195476 244345 245800 390952 488690 977380 1221725 1954760 2443450 4886900 9773800 60060001 120120002 240240004 300300005 480480008 600600010 1201200020 1501500025 2402400040 3003000050 6006000100 12012000200