Base | Representation |
---|---|
bin | 1111010100000… |
… | …10110011111000 |
3 | 22221201112211112 |
4 | 13222002303320 |
5 | 230341241242 |
6 | 20425215452 |
7 | 3116623664 |
oct | 752026370 |
9 | 287645745 |
10 | 128462072 |
11 | 66571502 |
12 | 37031588 |
13 | 207ca77b |
14 | 130bd8a4 |
15 | b427c82 |
hex | 7a82cf8 |
128462072 has 8 divisors (see below), whose sum is σ = 240866400. Its totient is φ = 64231032.
The previous prime is 128462071. The next prime is 128462099. The reversal of 128462072 is 270264821.
It is a tau number, because it is divible by the number of its divisors (8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128462071) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8028872 + ... + 8028887.
It is an arithmetic number, because the mean of its divisors is an integer number (30108300).
Almost surely, 2128462072 is an apocalyptic number.
It is an amenable number.
128462072 is a deficient number, since it is larger than the sum of its proper divisors (112404328).
128462072 is a wasteful number, since it uses less digits than its factorization.
128462072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16057765 (or 16057761 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 128462072 is about 11334.1109929275. The cubic root of 128462072 is about 504.5741231907.
The spelling of 128462072 in words is "one hundred twenty-eight million, four hundred sixty-two thousand, seventy-two".
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