Base | Representation |
---|---|
bin | 1111010111011… |
… | …10000000000100 |
3 | 22222112212002201 |
4 | 13223232000010 |
5 | 230444313444 |
6 | 20442444244 |
7 | 3123433012 |
oct | 753560004 |
9 | 288485081 |
10 | 128901124 |
11 | 66841360 |
12 | 37203684 |
13 | 20922571 |
14 | 131958b2 |
15 | b4b2dd4 |
hex | 7aee004 |
128901124 has 12 divisors (see below), whose sum is σ = 246084048. Its totient is φ = 58591400.
The previous prime is 128901109. The next prime is 128901161. The reversal of 128901124 is 421109821.
It is a junction number, because it is equal to n+sod(n) for n = 128901092 and 128901101.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464742 + ... + 1464829.
It is an arithmetic number, because the mean of its divisors is an integer number (20507004).
Almost surely, 2128901124 is an apocalyptic number.
It is an amenable number.
128901124 is a deficient number, since it is larger than the sum of its proper divisors (117182924).
128901124 is a wasteful number, since it uses less digits than its factorization.
128901124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2929586 (or 2929584 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 28.
The square root of 128901124 is about 11353.4630840110. The cubic root of 128901124 is about 505.1483066033.
The spelling of 128901124 in words is "one hundred twenty-eight million, nine hundred one thousand, one hundred twenty-four".
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