Base | Representation |
---|---|
bin | 111100010010000011… |
… | …1010110010000000000 |
3 | 110101010221021120000110 |
4 | 1320210013112100000 |
5 | 4110110430043200 |
6 | 135245404151320 |
7 | 12232004463555 |
oct | 1704407262000 |
9 | 411127246013 |
10 | 129454924800 |
11 | 4a9a0a26063 |
12 | 2110a238540 |
13 | c290c99b26 |
14 | 63a0d3ca2c |
15 | 357a094b50 |
hex | 1e241d6400 |
129454924800 has 264 divisors, whose sum is σ = 433899675072. Its totient is φ = 34033664000.
The previous prime is 129454924783. The next prime is 129454924867. The reversal of 129454924800 is 8429454921.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a self number, because there is not a number n which added to its sum of digits gives 129454924800.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5440930 + ... + 5464670.
Almost surely, 2129454924800 is an apocalyptic number.
129454924800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 129454924800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216949837536).
129454924800 is an abundant number, since it is smaller than the sum of its proper divisors (304444750272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129454924800 is a wasteful number, since it uses less digits than its factorization.
129454924800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23845 (or 23822 counting only the distinct ones).
The product of its (nonzero) digits is 829440, while the sum is 48.
The spelling of 129454924800 in words is "one hundred twenty-nine billion, four hundred fifty-four million, nine hundred twenty-four thousand, eight hundred".
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