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2045025 = 325261149
BaseRepresentation
bin111110011010001100001
310211220020200
413303101201
51010420100
6111455413
723245113
oct7632141
93756220
102045025
111177504
12827569
13567a98
143b33b3
152a5e00
hex1f3461

2045025 has 36 divisors (see below), whose sum is σ = 3747900. Its totient is φ = 1065600.

The previous prime is 2045023. The next prime is 2045047. The reversal of 2045025 is 5205402.

2045025 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 6 ways, for example, as 772641 + 1272384 = 879^2 + 1128^2 .

It is not a de Polignac number, because 2045025 - 21 = 2045023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2044989 and 2045007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13651 + ... + 13799.

22045025 is an apocalyptic number.

2045025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2045025 is a deficient number, since it is larger than the sum of its proper divisors (1702875).

2045025 is a wasteful number, since it uses less digits than its factorization.

2045025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 2045025 is about 1430.0437056258. The cubic root of 2045025 is about 126.9305632372.

The spelling of 2045025 in words is "two million, forty-five thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 61 75 149 183 225 305 447 549 745 915 1341 1525 2235 2745 3725 4575 6705 9089 11175 13725 27267 33525 45445 81801 136335 227225 409005 681675 2045025