Base | Representation |
---|---|
bin | 111111100011110000… |
… | …101101000111000000 |
3 | 20112011011100000202100 |
4 | 333203300231013000 |
5 | 2104231400031102 |
6 | 51203542150400 |
7 | 4634122631262 |
oct | 774360550700 |
9 | 215134300670 |
10 | 68245705152 |
11 | 26a40a15419 |
12 | 11287422400 |
13 | 6587b6ab71 |
14 | 3435a39b32 |
15 | 1b965d4a1c |
hex | fe3c2d1c0 |
68245705152 has 84 divisors (see below), whose sum is σ = 195682952296. Its totient is φ = 22740549120.
The previous prime is 68245705141. The next prime is 68245705159. The reversal of 68245705152 is 25150754286.
68245705152 is a `hidden beast` number, since 6 + 8 + 24 + 570 + 5 + 1 + 52 = 666.
68245705152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 68245705098 and 68245705107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68245705159) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1743783 + ... + 1782489.
Almost surely, 268245705152 is an apocalyptic number.
It is an amenable number.
68245705152 is an abundant number, since it is smaller than the sum of its proper divisors (127437247144).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68245705152 is a wasteful number, since it uses less digits than its factorization.
68245705152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41786 (or 41773 counting only the distinct ones).
The product of its (nonzero) digits is 672000, while the sum is 45.
The spelling of 68245705152 in words is "sixty-eight billion, two hundred forty-five million, seven hundred five thousand, one hundred fifty-two".
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