Base | Representation |
---|---|
bin | 1111001010110… |
… | …01101110111000 |
3 | 22212102201122200 |
4 | 13211121232320 |
5 | 230033321430 |
6 | 20343150200 |
7 | 3103365243 |
oct | 745315670 |
9 | 285381580 |
10 | 127245240 |
11 | 65910261 |
12 | 36745360 |
13 | 20492955 |
14 | 12c8425a |
15 | b287460 |
hex | 7959bb8 |
127245240 has 48 divisors (see below), whose sum is σ = 413548200. Its totient is φ = 33931968.
The previous prime is 127245229. The next prime is 127245259. The reversal of 127245240 is 42542721.
It is a super-2 number, since 2×1272452402 = 32382702205315200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176370 + ... + 177089.
Almost surely, 2127245240 is an apocalyptic number.
127245240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
127245240 is an abundant number, since it is smaller than the sum of its proper divisors (286302960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
127245240 is a wasteful number, since it uses less digits than its factorization.
127245240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 353476 (or 353469 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 27.
The square root of 127245240 is about 11280.3031874148. The cubic root of 127245240 is about 502.9759061588.
Adding to 127245240 its reverse (42542721), we get a palindrome (169787961).
The spelling of 127245240 in words is "one hundred twenty-seven million, two hundred forty-five thousand, two hundred forty".
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