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12000101020 = 225600005051
BaseRepresentation
bin10110010110100001…
…10000001010011100
31010222022022021220221
423023100300022130
5144034011213040
65302431451124
7603242114155
oct131320601234
933868267827
1012000101020
1150a8820566
1223aa986aa4
13119319b7bb
1481ba4692c
154a379074a
hex2cb43029c

12000101020 has 12 divisors (see below), whose sum is σ = 25200212184. Its totient is φ = 4800040400.

The previous prime is 12000100999. The next prime is 12000101021. The reversal of 12000101020 is 2010100021.

It is a junction number, because it is equal to n+sod(n) for n = 12000100994 and 12000101012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000101021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300002506 + ... + 300002545.

It is an arithmetic number, because the mean of its divisors is an integer number (2100017682).

Almost surely, 212000101020 is an apocalyptic number.

12000101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000101020 is an abundant number, since it is smaller than the sum of its proper divisors (13200111164).

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

12000101020 is a wasteful number, since it uses less digits than its factorization.

12000101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600005060 (or 600005058 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12000101020 its reverse (2010100021), we get a palindrome (14010201041).

Subtracting from 12000101020 its reverse (2010100021), we obtain a palindrome (9990000999).

The spelling of 12000101020 in words is "twelve billion, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 600005051 1200010102 2400020204 3000025255 6000050510 12000101020