Base | Representation |
---|---|
bin | 1111010111000… |
… | …10001110100110 |
3 | 22222110101221201 |
4 | 13223202032212 |
5 | 230441243102 |
6 | 20441433114 |
7 | 3123142303 |
oct | 753421646 |
9 | 288411851 |
10 | 128852902 |
11 | 66809102 |
12 | 3719b79a |
13 | 20906629 |
14 | 131820aa |
15 | b4a3987 |
hex | 7ae23a6 |
128852902 has 4 divisors (see below), whose sum is σ = 193279356. Its totient is φ = 64426450.
The previous prime is 128852891. The next prime is 128852939. The reversal of 128852902 is 209258821.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209258821 = 10139 ⋅20639.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32213224 + ... + 32213227.
It is an arithmetic number, because the mean of its divisors is an integer number (48319839).
Almost surely, 2128852902 is an apocalyptic number.
128852902 is a deficient number, since it is larger than the sum of its proper divisors (64426454).
128852902 is an equidigital number, since it uses as much as digits as its factorization.
128852902 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64426453.
The product of its (nonzero) digits is 23040, while the sum is 37.
The square root of 128852902 is about 11351.3392161454. The cubic root of 128852902 is about 505.0853066358.
The spelling of 128852902 in words is "one hundred twenty-eight million, eight hundred fifty-two thousand, nine hundred two".
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