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1045125 = 3253929
BaseRepresentation
bin11111111001010000101
31222002122100
43333022011
5231421000
634222313
711612004
oct3771205
91862570
101045125
11654244
12424999
132a7923
141d2c3b
15159a00
hexff285

1045125 has 24 divisors (see below), whose sum is σ = 1886040. Its totient is φ = 556800.

The previous prime is 1045123. The next prime is 1045129. The reversal of 1045125 is 5215401.

It can be written as a sum of positive squares in 4 ways, for example, as 272484 + 772641 = 522^2 + 879^2 .

It is not a de Polignac number, because 1045125 - 21 = 1045123 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1045098 and 1045107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (78585).

21045125 is an apocalyptic number.

1045125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1045125 is a deficient number, since it is larger than the sum of its proper divisors (840915).

1045125 is an equidigital number, since it uses as much as digits as its factorization.

1045125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 937 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1045125 is about 1022.3135526833. The cubic root of 1045125 is about 101.4820921758.

The spelling of 1045125 in words is "one million, forty-five thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 929 1125 2787 4645 8361 13935 23225 41805 69675 116125 209025 348375 1045125