Base | Representation |
---|---|
bin | 1110111011100… |
… | …00010010111001 |
3 | 22201122212200020 |
4 | 13131300102321 |
5 | 224030144010 |
6 | 20232201053 |
7 | 3050345445 |
oct | 735602271 |
9 | 281585606 |
10 | 125240505 |
11 | 64771055 |
12 | 35b39189 |
13 | 1cc40310 |
14 | 128c1825 |
15 | aedd470 |
hex | 77704b9 |
125240505 has 32 divisors (see below), whose sum is σ = 217969920. Its totient is φ = 61036800.
The previous prime is 125240501. The next prime is 125240509. The reversal of 125240505 is 505042521.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (125240501) and next prime (125240509).
It is not a de Polignac number, because 125240505 - 22 = 125240501 is a prime.
It is not an unprimeable number, because it can be changed into a prime (125240501) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16516 + ... + 22874.
It is an arithmetic number, because the mean of its divisors is an integer number (6811560).
Almost surely, 2125240505 is an apocalyptic number.
125240505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
125240505 is a deficient number, since it is larger than the sum of its proper divisors (92729415).
125240505 is a wasteful number, since it uses less digits than its factorization.
125240505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6481.
The product of its (nonzero) digits is 2000, while the sum is 24.
The square root of 125240505 is about 11191.0904294443. The cubic root of 125240505 is about 500.3204678901.
The spelling of 125240505 in words is "one hundred twenty-five million, two hundred forty thousand, five hundred five".
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