| Base | Representation |
|---|---|
| bin | 1111010011010… |
| … | …01101111100000 |
| 3 | 22221112022222120 |
| 4 | 13221221233200 |
| 5 | 230330000032 |
| 6 | 20423104240 |
| 7 | 3116015430 |
| oct | 751515740 |
| 9 | 287468876 |
| 10 | 128359392 |
| 11 | 66501347 |
| 12 | 36ba2080 |
| 13 | 20792b05 |
| 14 | 130942c0 |
| 15 | b40762c |
| hex | 7a69be0 |
128359392 has 96 divisors (see below), whose sum is σ = 387120384. Its totient is φ = 36480000.
The previous prime is 128359391. The next prime is 128359453. The reversal of 128359392 is 293953821.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-2 number, since 2×1283593922 = 32952267029219328, which contains 22 as substring.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128359391) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168292 + ... + 169052.
It is an arithmetic number, because the mean of its divisors is an integer number (4032504).
Almost surely, 2128359392 is an apocalyptic number.
128359392 is a gapful number since it is divisible by the number (12) 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 128359392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193560192).
128359392 is an abundant number, since it is smaller than the sum of its proper divisors (258760992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128359392 is a wasteful number, since it uses less digits than its factorization.
128359392 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1032 (or 1024 counting only the distinct ones).
The product of its digits is 116640, while the sum is 42.
The square root of 128359392 is about 11329.5803982319. The cubic root of 128359392 is about 504.4396516429.
The spelling of 128359392 in words is "one hundred twenty-eight million, three hundred fifty-nine thousand, three hundred ninety-two".
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