Base | Representation |
---|---|
bin | 110100010110… |
… | …110110110001 |
3 | 221211022022020 |
4 | 310112312301 |
5 | 12003200410 |
6 | 1210102053 |
7 | 224442612 |
oct | 64266661 |
9 | 27738266 |
10 | 13725105 |
11 | 7824969 |
12 | 471a929 |
13 | 2ac7284 |
14 | 1b73c09 |
15 | 1311a70 |
hex | d16db1 |
13725105 has 8 divisors (see below), whose sum is σ = 21960192. Its totient is φ = 7320048.
The previous prime is 13725083. The next prime is 13725109. The reversal of 13725105 is 50152731.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13725105 - 211 = 13723057 is a prime.
It is a super-2 number, since 2×137251052 = 376757014522050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13725109) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 457489 + ... + 457518.
It is an arithmetic number, because the mean of its divisors is an integer number (2745024).
Almost surely, 213725105 is an apocalyptic number.
13725105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13725105 is a deficient number, since it is larger than the sum of its proper divisors (8235087).
13725105 is an equidigital number, since it uses as much as digits as its factorization.
13725105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 915015.
The product of its (nonzero) digits is 1050, while the sum is 24.
The square root of 13725105 is about 3704.7408816272. The cubic root of 13725105 is about 239.4263207821.
Adding to 13725105 its reverse (50152731), we get a palindrome (63877836).
The spelling of 13725105 in words is "thirteen million, seven hundred twenty-five thousand, one hundred five".
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