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1250125 = 5373137
BaseRepresentation
bin100110001001101001101
32100111211221
410301031031
5310001000
642443341
713424452
oct4611515
92314757
101250125
11784268
12503551
1334a026
14247829
1519a61a
hex13134d

1250125 has 16 divisors (see below), whose sum is σ = 1593072. Its totient is φ = 979200.

The previous prime is 1250107. The next prime is 1250141. The reversal of 1250125 is 5210521.

It can be written as a sum of positive squares in 8 ways, for example, as 316969 + 933156 = 563^2 + 966^2 .

It is a de Polignac number, because none of the positive numbers 2k-1250125 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1250099 and 1250108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9057 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (99567).

21250125 is an apocalyptic number.

It is an amenable number.

1250125 is a deficient number, since it is larger than the sum of its proper divisors (342947).

1250125 is an equidigital number, since it uses as much as digits as its factorization.

1250125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1250125 is about 1118.0898890519. The cubic root of 1250125 is about 107.7253251064.

Adding to 1250125 its reverse (5210521), we get a palindrome (6460646).

The spelling of 1250125 in words is "one million, two hundred fifty thousand, one hundred twenty-five".

Divisors: 1 5 25 73 125 137 365 685 1825 3425 9125 10001 17125 50005 250025 1250125