Base | Representation |
---|---|
bin | 101110000010… |
… | …111111111101 |
3 | 211201021011201 |
4 | 232002333331 |
5 | 11042232114 |
6 | 1110415501 |
7 | 204413104 |
oct | 56027775 |
9 | 24637151 |
10 | 12070909 |
11 | 68a5064 |
12 | 4061591 |
13 | 2668366 |
14 | 186303b |
15 | 10d6874 |
hex | b82ffd |
12070909 has 8 divisors (see below), whose sum is σ = 12947040. Its totient is φ = 11218896.
The previous prime is 12070907. The next prime is 12070913. The reversal of 12070909 is 90907021.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12070909 - 21 = 12070907 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12070907) 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, 4987 + ... + 7000.
It is an arithmetic number, because the mean of its divisors is an integer number (1618380).
Almost surely, 212070909 is an apocalyptic number.
12070909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
It is an amenable number.
12070909 is a deficient number, since it is larger than the sum of its proper divisors (876131).
12070909 is a wasteful number, since it uses less digits than its factorization.
12070909 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12059.
The product of its (nonzero) digits is 1134, while the sum is 28.
The square root of 12070909 is about 3474.3213725849. The cubic root of 12070909 is about 229.3929106432.
The spelling of 12070909 in words is "twelve million, seventy thousand, nine hundred nine".
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