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12020230013 = 1128312793019
BaseRepresentation
bin10110011000111011…
…00010011101111101
31011000201011221201012
423030131202131331
5144104134330023
65304431125005
7603605161241
oct131435423575
934021157635
1012020230013
1151091197a0
1223b5673765
1311973c884c
148205a6421
154a5419978
hex2cc76277d

12020230013 has 16 divisors (see below), whose sum is σ = 13173964800. Its totient is φ = 10876751280.

The previous prime is 12020230007. The next prime is 12020230037. The reversal of 12020230013 is 31003202021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12020230013 - 214 = 12020213629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020230013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020232013) 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, 3980018 + ... + 3983036.

It is an arithmetic number, because the mean of its divisors is an integer number (823372800).

Almost surely, 212020230013 is an apocalyptic number.

It is an amenable number.

12020230013 is a deficient number, since it is larger than the sum of its proper divisors (1153734787).

12020230013 is a wasteful number, since it uses less digits than its factorization.

12020230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4592.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12020230013 its reverse (31003202021), we get a palindrome (43023432034).

The spelling of 12020230013 in words is "twelve billion, twenty million, two hundred thirty thousand, thirteen".

Divisors: 1 11 283 1279 3019 3113 14069 33209 361957 854377 3861301 3981527 9398147 42474311 1092748183 12020230013