Base | Representation |
---|---|
bin | 1110011101101… |
… | …01010010100111 |
3 | 22110022010211112 |
4 | 13032311102213 |
5 | 222030010212 |
6 | 20012255235 |
7 | 3002164205 |
oct | 716652247 |
9 | 273263745 |
10 | 121328807 |
11 | 6253a146 |
12 | 3477151b |
13 | 1c1a09c2 |
14 | 12184075 |
15 | a9b9422 |
hex | 73b54a7 |
121328807 has 2 divisors, whose sum is σ = 121328808. Its totient is φ = 121328806.
The previous prime is 121328797. The next prime is 121328827. The reversal of 121328807 is 708823121.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 121328807 - 26 = 121328743 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (121328827) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60664403 + 60664404.
It is an arithmetic number, because the mean of its divisors is an integer number (60664404).
Almost surely, 2121328807 is an apocalyptic number.
121328807 is a deficient number, since it is larger than the sum of its proper divisors (1).
121328807 is an equidigital number, since it uses as much as digits as its factorization.
121328807 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5376, while the sum is 32.
The square root of 121328807 is about 11014.9356330394. The cubic root of 121328807 is about 495.0563578997.
The spelling of 121328807 in words is "one hundred twenty-one million, three hundred twenty-eight thousand, eight hundred seven".
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