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13745125 = 53109961
BaseRepresentation
bin110100011011…
…101111100101
3221212022202201
4310123233211
512004321000
61210334501
7224555152
oct64335745
927768681
1013745125
117838a09
12472a431
132b03414
141b7b229
15131796a
hexd1bbe5

13745125 has 8 divisors (see below), whose sum is σ = 17154072. Its totient is φ = 10996000.

The previous prime is 13745107. The next prime is 13745141. The reversal of 13745125 is 52154731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 195364 + 13549761 = 442^2 + 3681^2 .

It is not a de Polignac number, because 13745125 - 29 = 13744613 is a prime.

It is a super-2 number, since 2×137451252 = 377856922531250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13745093 and 13745102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54856 + ... + 55105.

It is an arithmetic number, because the mean of its divisors is an integer number (2144259).

Almost surely, 213745125 is an apocalyptic number.

It is an amenable number.

13745125 is a deficient number, since it is larger than the sum of its proper divisors (3408947).

13745125 is an equidigital number, since it uses as much as digits as its factorization.

13745125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109976 (or 109966 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 13745125 is about 3707.4418404069. The cubic root of 13745125 is about 239.5426765709.

Adding to 13745125 its reverse (52154731), we get a palindrome (65899856).

The spelling of 13745125 in words is "thirteen million, seven hundred forty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 109961 549805 2749025 13745125