Base | Representation |
---|---|
bin | 1111010011111… |
… | …11011010010110 |
3 | 22221200211201220 |
4 | 13221333122112 |
5 | 230340320100 |
6 | 20425031210 |
7 | 3116535255 |
oct | 751773226 |
9 | 287624656 |
10 | 128448150 |
11 | 66561aa6 |
12 | 37025506 |
13 | 207c432c |
14 | 130b879c |
15 | b423aa0 |
hex | 7a7f696 |
128448150 has 96 divisors (see below), whose sum is σ = 329764608. Its totient is φ = 33072000.
The previous prime is 128448143. The next prime is 128448157. The reversal of 128448150 is 51844821.
It is an interprime number because it is at equal distance from previous prime (128448143) and next prime (128448157).
It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128448157) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 850575 + ... + 850725.
It is an arithmetic number, because the mean of its divisors is an integer number (3435048).
Almost surely, 2128448150 is an apocalyptic number.
128448150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 128448150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164882304).
128448150 is an abundant number, since it is smaller than the sum of its proper divisors (201316458).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128448150 is a wasteful number, since it uses less digits than its factorization.
128448150 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 326 (or 321 counting only the distinct ones).
The product of its (nonzero) digits is 10240, while the sum is 33.
The square root of 128448150 is about 11333.4968125464. The cubic root of 128448150 is about 504.5558948928. Note that the first 3 decimals are identical.
The spelling of 128448150 in words is "one hundred twenty-eight million, four hundred forty-eight thousand, one hundred fifty".
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