Base | Representation |
---|---|
bin | 1111111111101… |
… | …0111111111100 |
3 | 11200020102221211 |
4 | 3333322333330 |
5 | 114133312010 |
6 | 10353534204 |
7 | 1443145642 |
oct | 377727774 |
9 | 150212854 |
10 | 67088380 |
11 | 34962547 |
12 | 1a574364 |
13 | 10b8c488 |
14 | 8ca5192 |
15 | 5d5308a |
hex | 3ffaffc |
67088380 has 24 divisors (see below), whose sum is σ = 142672320. Its totient is φ = 26495040.
The previous prime is 67088347. The next prime is 67088381. The reversal of 67088380 is 8388076.
It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67088381) 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, 19651 + ... + 22810.
It is an arithmetic number, because the mean of its divisors is an integer number (5944680).
Almost surely, 267088380 is an apocalyptic number.
It is an amenable number.
67088380 is an abundant number, since it is smaller than the sum of its proper divisors (75583940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67088380 is a wasteful number, since it uses less digits than its factorization.
67088380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 42549 (or 42547 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 40.
The square root of 67088380 is about 8190.7496604401. The cubic root of 67088380 is about 406.3333184533. Note that the first 4 decimals are identical.
The spelling of 67088380 in words is "sixty-seven million, eighty-eight thousand, three hundred eighty".
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