Base | Representation |
---|---|
bin | 1111111100011… |
… | …1111001001000 |
3 | 11122211210210210 |
4 | 3333013321020 |
5 | 114110112143 |
6 | 10345241120 |
7 | 1441314435 |
oct | 377077110 |
9 | 148753723 |
10 | 66879048 |
11 | 3482a245 |
12 | 1a4931a0 |
13 | 10b18102 |
14 | 8c4cb8c |
15 | 5d11033 |
hex | 3fc7e48 |
66879048 has 32 divisors (see below), whose sum is σ = 167443200. Its totient is φ = 22260288.
The previous prime is 66879047. The next prime is 66879053. The reversal of 66879048 is 84097866.
It is a super-2 number, since 2×668790482 = 8945614122772608, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 66878988 and 66879006.
It is not an unprimeable number, because it can be changed into a prime (66879047) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19098 + ... + 22326.
It is an arithmetic number, because the mean of its divisors is an integer number (5232600).
Almost surely, 266879048 is an apocalyptic number.
It is an amenable number.
66879048 is an abundant number, since it is smaller than the sum of its proper divisors (100564152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
66879048 is a wasteful number, since it uses less digits than its factorization.
66879048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4101 (or 4097 counting only the distinct ones).
The product of its (nonzero) digits is 580608, while the sum is 48.
The square root of 66879048 is about 8177.9611150946. The cubic root of 66879048 is about 405.9102586643.
The spelling of 66879048 in words is "sixty-six million, eight hundred seventy-nine thousand, forty-eight".
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