Base | Representation |
---|---|
bin | 1000000101010… |
… | …01000100011010 |
3 | 11201120122222212 |
4 | 10002221010122 |
5 | 114324120440 |
6 | 10421115122 |
7 | 1452205430 |
oct | 402510432 |
9 | 151518885 |
10 | 67801370 |
11 | 352aa19a |
12 | 1a858aa2 |
13 | 1107bb70 |
14 | 900cd50 |
15 | 5e44465 |
hex | 40a911a |
67801370 has 32 divisors (see below), whose sum is σ = 150208128. Its totient is φ = 21457728.
The previous prime is 67801361. The next prime is 67801373. The reversal of 67801370 is 7310876.
It is a happy number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (67801373) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36344 + ... + 38163.
It is an arithmetic number, because the mean of its divisors is an integer number (4694004).
Almost surely, 267801370 is an apocalyptic number.
67801370 is an abundant number, since it is smaller than the sum of its proper divisors (82406758).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67801370 is a wasteful number, since it uses less digits than its factorization.
67801370 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74534.
The product of its (nonzero) digits is 7056, while the sum is 32.
The square root of 67801370 is about 8234.1587305565. The cubic root of 67801370 is about 407.7677014495.
The spelling of 67801370 in words is "sixty-seven million, eight hundred one thousand, three hundred seventy".
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