Base | Representation |
---|---|
bin | 10110100010011101… |
… | …01101101111111110 |
3 | 1011020021201101020221 |
4 | 23101032231233332 |
5 | 144240124331032 |
6 | 5320405531554 |
7 | 605566154620 |
oct | 132116555776 |
9 | 34207641227 |
10 | 12100230142 |
11 | 514a2a0000 |
12 | 2418413bba |
13 | 11aab58cc0 |
14 | 82b06cc10 |
15 | 4ac46d597 |
hex | 2d13adbfe |
12100230142 has 160 divisors (see below), whose sum is σ = 25974144000. Its totient is φ = 4105442880.
The previous prime is 12100230133. The next prime is 12100230221. The reversal of 12100230142 is 24103200121.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 50628459 + ... + 50628697.
It is an arithmetic number, because the mean of its divisors is an integer number (162338400).
Almost surely, 212100230142 is an apocalyptic number.
12100230142 is an abundant number, since it is smaller than the sum of its proper divisors (13873913858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12100230142 is a wasteful number, since it uses less digits than its factorization.
12100230142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 324 (or 291 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
Adding to 12100230142 its reverse (24103200121), we get a palindrome (36203430263).
It can be divided in two parts, 12100 and 230142, that added together give a palindrome (242242).
The spelling of 12100230142 in words is "twelve billion, one hundred million, two hundred thirty thousand, one hundred forty-two".
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