Base | Representation |
---|---|
bin | 10011111010101101000… |
… | …111101101111110111111 |
3 | 11211211212100012102121102 |
4 | 103322231013231332333 |
5 | 134411101221104410 |
6 | 2524435102323315 |
7 | 200612522511125 |
oct | 23725507557677 |
9 | 4754770172542 |
10 | 1368704081855 |
11 | 488511854830 |
12 | 1a132028953b |
13 | 9c0b6c05a06 |
14 | 4a362023915 |
15 | 2590a8a02a5 |
hex | 13ead1edfbf |
1368704081855 has 64 divisors (see below), whose sum is σ = 1941955969536. Its totient is φ = 914758656000.
The previous prime is 1368704081837. The next prime is 1368704081869. The reversal of 1368704081855 is 5581804078631.
It is not a de Polignac number, because 1368704081855 - 210 = 1368704080831 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1368704081855.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189804200 + ... + 189811410.
It is an arithmetic number, because the mean of its divisors is an integer number (30343062024).
Almost surely, 21368704081855 is an apocalyptic number.
1368704081855 is a deficient number, since it is larger than the sum of its proper divisors (573251887681).
1368704081855 is a wasteful number, since it uses less digits than its factorization.
1368704081855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12008.
The product of its (nonzero) digits is 6451200, while the sum is 56.
The spelling of 1368704081855 in words is "one trillion, three hundred sixty-eight billion, seven hundred four million, eighty-one thousand, eight hundred fifty-five".
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