Base | Representation |
---|---|
bin | 1000001100001… |
… | …11010000111000 |
3 | 11210021220102122 |
4 | 10012013100320 |
5 | 120042231410 |
6 | 10452420412 |
7 | 1463016005 |
oct | 406072070 |
9 | 153256378 |
10 | 68711480 |
11 | 35870a52 |
12 | 1b017708 |
13 | 1130a1a6 |
14 | 91a88ac |
15 | 6073e55 |
hex | 4187438 |
68711480 has 16 divisors (see below), whose sum is σ = 154600920. Its totient is φ = 27484576.
The previous prime is 68711473. The next prime is 68711491. The reversal of 68711480 is 8411786.
It is a self number, because there is not a number n which added to its sum of digits gives 68711480.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858854 + ... + 858933.
Almost surely, 268711480 is an apocalyptic number.
It is an amenable number.
68711480 is an abundant number, since it is smaller than the sum of its proper divisors (85889440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68711480 is a wasteful number, since it uses less digits than its factorization.
68711480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1717798 (or 1717794 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 35.
The square root of 68711480 is about 8289.2388070317. The cubic root of 68711480 is about 409.5841112967.
It can be divided in two parts, 687 and 11480, that added together give a cube (12167 = 233).
The spelling of 68711480 in words is "sixty-eight million, seven hundred eleven thousand, four hundred eighty".
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