Base | Representation |
---|---|
bin | 1000000010110… |
… | …10110110001001 |
3 | 11200222101111011 |
4 | 10001122312021 |
5 | 114233342334 |
6 | 10410203521 |
7 | 1446402343 |
oct | 401326611 |
9 | 150871434 |
10 | 67480969 |
11 | 351004a6 |
12 | 1a7235a1 |
13 | 10c9908a |
14 | 8d68293 |
15 | 5dce564 |
hex | 405ad89 |
67480969 has 2 divisors, whose sum is σ = 67480970. Its totient is φ = 67480968.
The previous prime is 67480961. The next prime is 67480979. The reversal of 67480969 is 96908476.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 66634569 + 846400 = 8163^2 + 920^2 .
It is a cyclic number.
It is not a de Polignac number, because 67480969 - 23 = 67480961 is a prime.
It is a super-2 number, since 2×674809692 = 9107362354357922, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (67480961) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33740484 + 33740485.
It is an arithmetic number, because the mean of its divisors is an integer number (33740485).
Almost surely, 267480969 is an apocalyptic number.
It is an amenable number.
67480969 is a deficient number, since it is larger than the sum of its proper divisors (1).
67480969 is an equidigital number, since it uses as much as digits as its factorization.
67480969 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 653184, while the sum is 49.
The square root of 67480969 is about 8214.6800911539. The cubic root of 67480969 is about 407.1243736468.
The spelling of 67480969 in words is "sixty-seven million, four hundred eighty thousand, nine hundred sixty-nine".
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