Base | Representation |
---|---|
bin | 1111111111011… |
… | …0010000101100 |
3 | 11200012110100000 |
4 | 3333312100230 |
5 | 114132201342 |
6 | 10353304300 |
7 | 1443035235 |
oct | 377662054 |
9 | 150173300 |
10 | 67068972 |
11 | 34949a03 |
12 | 1a565090 |
13 | 10b836a9 |
14 | 8c9c08c |
15 | 5d4c44c |
hex | 3ff642c |
67068972 has 36 divisors (see below), whose sum is σ = 175817096. Its totient is φ = 22356000.
The previous prime is 67068971. The next prime is 67068979. The reversal of 67068972 is 27986076.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (67068971) 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, 33529 + ... + 35472.
Almost surely, 267068972 is an apocalyptic number.
It is an amenable number.
67068972 is an abundant number, since it is smaller than the sum of its proper divisors (108748124).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67068972 is a wasteful number, since it uses less digits than its factorization.
67068972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69020 (or 69006 counting only the distinct ones).
The product of its (nonzero) digits is 254016, while the sum is 45.
The square root of 67068972 is about 8189.5648236033. The cubic root of 67068972 is about 406.2941319473.
It can be divided in two parts, 670689 and 72, that added together give a square (670761 = 8192).
The spelling of 67068972 in words is "sixty-seven million, sixty-eight thousand, nine hundred seventy-two".
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