Base | Representation |
---|---|
bin | 1000001110001… |
… | …01100001010101 |
3 | 11210202212020021 |
4 | 10013011201111 |
5 | 120123411420 |
6 | 10502105141 |
7 | 1465130320 |
oct | 407054125 |
9 | 153685207 |
10 | 68966485 |
11 | 35a255a5 |
12 | 1b11b1b1 |
13 | 11399293 |
14 | 92337b7 |
15 | 60c47aa |
hex | 41c5855 |
68966485 has 32 divisors (see below), whose sum is σ = 100419840. Its totient is φ = 44416512.
The previous prime is 68966473. The next prime is 68966497. The reversal of 68966485 is 58466986.
It is an interprime number because it is at equal distance from previous prime (68966473) and next prime (68966497).
It is not a de Polignac number, because 68966485 - 27 = 68966357 is a prime.
It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90727 + ... + 91483.
It is an arithmetic number, because the mean of its divisors is an integer number (3138120).
Almost surely, 268966485 is an apocalyptic number.
68966485 is the 4795-th octagonal number.
It is an amenable number.
68966485 is a deficient number, since it is larger than the sum of its proper divisors (31453355).
68966485 is a wasteful number, since it uses less digits than its factorization.
68966485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 925.
The product of its digits is 2488320, while the sum is 52.
The square root of 68966485 is about 8304.6062519544. The cubic root of 68966485 is about 410.0901744945.
The spelling of 68966485 in words is "sixty-eight million, nine hundred sixty-six thousand, four hundred eighty-five".
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