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12020020207 = 1337197126851
BaseRepresentation
bin10110011000111001…
…01111001111101111
31011000200210021220121
423030130233033233
5144104111121312
65304422425411
7603603325456
oct131434571757
934020707817
1012020020207
115108a960a8
1223b5592267
1311973541c0
1482054db9d
154a53c7707
hex2cc72f3ef

12020020207 has 16 divisors (see below), whose sum is σ = 13362082272. Its totient is φ = 10740643200.

The previous prime is 12020020183. The next prime is 12020020211. The reversal of 12020020207 is 70202002021.

It is a cyclic number.

It is not a de Polignac number, because 12020020207 - 219 = 12019495919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020027207) 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, 31332 + ... + 158182.

It is an arithmetic number, because the mean of its divisors is an integer number (835130142).

Almost surely, 212020020207 is an apocalyptic number.

12020020207 is a deficient number, since it is larger than the sum of its proper divisors (1342062065).

12020020207 is a wasteful number, since it uses less digits than its factorization.

12020020207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127098.

The product of its (nonzero) digits is 112, while the sum is 16.

Adding to 12020020207 its reverse (70202002021), we get a palindrome (82222022228).

The spelling of 12020020207 in words is "twelve billion, twenty million, twenty thousand, two hundred seven".

Divisors: 1 13 37 197 481 2561 7289 94757 126851 1649063 4693487 24989647 61015331 324865411 924616939 12020020207