Base | Representation |
---|---|
bin | 1111011001011… |
… | …01010100000111 |
3 | 100000001000211120 |
4 | 13230231110013 |
5 | 231031113310 |
6 | 20452205023 |
7 | 3125563044 |
oct | 754552407 |
9 | 300030746 |
10 | 129160455 |
11 | 669a9186 |
12 | 37309773 |
13 | 209b3608 |
14 | 132221cb |
15 | b514b70 |
hex | 7b2d507 |
129160455 has 32 divisors (see below), whose sum is σ = 213857280. Its totient is φ = 66520320.
The previous prime is 129160453. The next prime is 129160457. The reversal of 129160455 is 554061921.
It is an interprime number because it is at equal distance from previous prime (129160453) and next prime (129160457).
It is not a de Polignac number, because 129160455 - 21 = 129160453 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (129160453) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62326 + ... + 64364.
It is an arithmetic number, because the mean of its divisors is an integer number (6683040).
Almost surely, 2129160455 is an apocalyptic number.
129160455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
129160455 is a deficient number, since it is larger than the sum of its proper divisors (84696825).
129160455 is a wasteful number, since it uses less digits than its factorization.
129160455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2191.
The product of its (nonzero) digits is 10800, while the sum is 33.
The square root of 129160455 is about 11364.8781339705. The cubic root of 129160455 is about 505.4868422133.
The spelling of 129160455 in words is "one hundred twenty-nine million, one hundred sixty thousand, four hundred fifty-five".
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