Base | Representation |
---|---|
bin | 1111001011110… |
… | …10110010100010 |
3 | 22212200121101120 |
4 | 13211322302202 |
5 | 230102140032 |
6 | 20350113110 |
7 | 3104501064 |
oct | 745726242 |
9 | 285617346 |
10 | 127380642 |
11 | 659a2a64 |
12 | 367ab796 |
13 | 2050c47c |
14 | 12cbb734 |
15 | b2b262c |
hex | 797aca2 |
127380642 has 16 divisors (see below), whose sum is σ = 254912832. Its totient is φ = 42434960.
The previous prime is 127380641. The next prime is 127380653. The reversal of 127380642 is 246083721.
It is not an unprimeable number, because it can be changed into a prime (127380641) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6667 + ... + 17297.
It is an arithmetic number, because the mean of its divisors is an integer number (15932052).
Almost surely, 2127380642 is an apocalyptic number.
127380642 is an abundant number, since it is smaller than the sum of its proper divisors (127532190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127380642 is a wasteful number, since it uses less digits than its factorization.
127380642 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12633.
The product of its (nonzero) digits is 16128, while the sum is 33.
The square root of 127380642 is about 11286.3032920439. The cubic root of 127380642 is about 503.1542489175.
The spelling of 127380642 in words is "one hundred twenty-seven million, three hundred eighty thousand, six hundred forty-two".
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