Base | Representation |
---|---|
bin | 1111010011011… |
… | …00010110000000 |
3 | 22221112212121020 |
4 | 13221230112000 |
5 | 230330320143 |
6 | 20423225440 |
7 | 3116061462 |
oct | 751542600 |
9 | 287485536 |
10 | 128370048 |
11 | 66509354 |
12 | 36ba8280 |
13 | 20797911 |
14 | 13098132 |
15 | b40a883 |
hex | 7a6c580 |
128370048 has 32 divisors (see below), whose sum is σ = 340983960. Its totient is φ = 42789888.
The previous prime is 128370031. The next prime is 128370049. The reversal of 128370048 is 840073821.
It is a tau number, because it is divible by the number of its divisors (32).
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 congruent number.
It is not an unprimeable number, because it can be changed into a prime (128370049) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166765 + ... + 167532.
Almost surely, 2128370048 is an apocalyptic number.
It is an amenable number.
128370048 is an abundant number, since it is smaller than the sum of its proper divisors (212613912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128370048 is an equidigital number, since it uses as much as digits as its factorization.
128370048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 334314 (or 334302 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 33.
The square root of 128370048 is about 11330.0506618461. The cubic root of 128370048 is about 504.4536102635.
The spelling of 128370048 in words is "one hundred twenty-eight million, three hundred seventy thousand, forty-eight".
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