Base | Representation |
---|---|
bin | 1000001010100… |
… | …00011010111101 |
3 | 11202212111021211 |
4 | 10011100122331 |
5 | 120013034340 |
6 | 10443524421 |
7 | 1461062050 |
oct | 405203275 |
9 | 152774254 |
10 | 68486845 |
11 | 357281a9 |
12 | 1ab29711 |
13 | 1125bb7b |
14 | 914aa97 |
15 | 602c5ea |
hex | 41506bd |
68486845 has 16 divisors (see below), whose sum is σ = 94406400. Its totient is φ = 46721664.
The previous prime is 68486839. The next prime is 68486857. The reversal of 68486845 is 54868486.
It is a cyclic number.
It is not a de Polignac number, because 68486845 - 23 = 68486837 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, 2049 + ... + 11881.
It is an arithmetic number, because the mean of its divisors is an integer number (5900400).
Almost surely, 268486845 is an apocalyptic number.
It is an amenable number.
68486845 is a deficient number, since it is larger than the sum of its proper divisors (25919555).
68486845 is a wasteful number, since it uses less digits than its factorization.
68486845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10044.
The product of its digits is 1474560, while the sum is 49.
The square root of 68486845 is about 8275.6779178506. The cubic root of 68486845 is about 409.1372797343.
It can be divided in two parts, 6848684 and 5, that added together give a square (6848689 = 26172).
The spelling of 68486845 in words is "sixty-eight million, four hundred eighty-six thousand, eight hundred forty-five".
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