Base | Representation |
---|---|
bin | 1000000000110… |
… | …01111011000001 |
3 | 11200110212200222 |
4 | 10000121323001 |
5 | 114201340131 |
6 | 10400352425 |
7 | 1444214135 |
oct | 400317301 |
9 | 150425628 |
10 | 67215041 |
11 | 34a39723 |
12 | 1a615715 |
13 | 10c0501a |
14 | 8cd93c5 |
15 | 5d7a87b |
hex | 4019ec1 |
67215041 has 2 divisors, whose sum is σ = 67215042. Its totient is φ = 67215040.
The previous prime is 67215013. The next prime is 67215053. The reversal of 67215041 is 14051276.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 57820816 + 9394225 = 7604^2 + 3065^2 .
It is a cyclic number.
It is not a de Polignac number, because 67215041 - 214 = 67198657 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 67215041.
It is not a weakly prime, because it can be changed into another prime (67215091) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33607520 + 33607521.
It is an arithmetic number, because the mean of its divisors is an integer number (33607521).
Almost surely, 267215041 is an apocalyptic number.
It is an amenable number.
67215041 is a deficient number, since it is larger than the sum of its proper divisors (1).
67215041 is an equidigital number, since it uses as much as digits as its factorization.
67215041 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1680, while the sum is 26.
The square root of 67215041 is about 8198.4779685012. The cubic root of 67215041 is about 406.5888730378.
The spelling of 67215041 in words is "sixty-seven million, two hundred fifteen thousand, forty-one".
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