Base | Representation |
---|---|
bin | 101111100101… |
… | …000110010101 |
3 | 212110200100210 |
4 | 233211012111 |
5 | 11143111400 |
6 | 1123200033 |
7 | 211005426 |
oct | 57450625 |
9 | 25420323 |
10 | 12472725 |
11 | 7049a41 |
12 | 4216019 |
13 | 2779215 |
14 | 192964d |
15 | 1165950 |
hex | be5195 |
12472725 has 12 divisors (see below), whose sum is σ = 20621696. Its totient is φ = 6652080.
The previous prime is 12472703. The next prime is 12472753. The reversal of 12472725 is 52727421.
It is not a de Polignac number, because 12472725 - 28 = 12472469 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12472692 and 12472701.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83077 + ... + 83226.
Almost surely, 212472725 is an apocalyptic number.
12472725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12472725 is a deficient number, since it is larger than the sum of its proper divisors (8148971).
12472725 is a wasteful number, since it uses less digits than its factorization.
12472725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 166316 (or 166311 counting only the distinct ones).
The product of its digits is 7840, while the sum is 30.
The square root of 12472725 is about 3531.6745320032. The cubic root of 12472725 is about 231.9105196445.
The spelling of 12472725 in words is "twelve million, four hundred seventy-two thousand, seven hundred twenty-five".
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