Base | Representation |
---|---|
bin | 10110101110000111… |
… | …10101101001100111 |
3 | 1011111002202202012022 |
4 | 23113003311221213 |
5 | 144440144322330 |
6 | 5334222213355 |
7 | 611164435202 |
oct | 132703655147 |
9 | 34432682168 |
10 | 12198042215 |
11 | 519a527727 |
12 | 244512425b |
13 | 11c51b4978 |
14 | 83a050939 |
15 | 4b5d3eae5 |
hex | 2d70f5a67 |
12198042215 has 16 divisors (see below), whose sum is σ = 15538573440. Its totient is φ = 9160773120.
The previous prime is 12198042209. The next prime is 12198042247. The reversal of 12198042215 is 51224089121.
It is not a de Polignac number, because 12198042215 - 212 = 12198038119 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151391 + ... + 217520.
It is an arithmetic number, because the mean of its divisors is an integer number (971160840).
Almost surely, 212198042215 is an apocalyptic number.
12198042215 is a deficient number, since it is larger than the sum of its proper divisors (3340531225).
12198042215 is a wasteful number, since it uses less digits than its factorization.
12198042215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 369322.
The product of its (nonzero) digits is 11520, while the sum is 35.
The spelling of 12198042215 in words is "twelve billion, one hundred ninety-eight million, forty-two thousand, two hundred fifteen".
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