Base | Representation |
---|---|
bin | 10010110000011001001… |
… | …011111110110101001110 |
3 | 11120012220112202022101220 |
4 | 102300121023332311032 |
5 | 132104143131311032 |
6 | 2424041321344210 |
7 | 162056313460050 |
oct | 22603113766516 |
9 | 4505815668356 |
10 | 1288912760142 |
11 | 457696718847 |
12 | 189972338066 |
13 | 9470c0a6297 |
14 | 46552c898d0 |
15 | 237da8a212c |
hex | 12c192fed4e |
1288912760142 has 32 divisors (see below), whose sum is σ = 2947510425600. Its totient is φ = 368082774048.
The previous prime is 1288912760131. The next prime is 1288912760143. The reversal of 1288912760142 is 2410672198821.
It is a super-2 number, since 2×12889127601422 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1288912760143) 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, 7329342 + ... + 7503137.
It is an arithmetic number, because the mean of its divisors is an integer number (92109700800).
Almost surely, 21288912760142 is an apocalyptic number.
1288912760142 is an abundant number, since it is smaller than the sum of its proper divisors (1658597665458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1288912760142 is a wasteful number, since it uses less digits than its factorization.
1288912760142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14834560.
The product of its (nonzero) digits is 774144, while the sum is 51.
The spelling of 1288912760142 in words is "one trillion, two hundred eighty-eight billion, nine hundred twelve million, seven hundred sixty thousand, one hundred forty-two".
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