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2745225 = 33527283
BaseRepresentation
bin1010011110001110001001
312011110202000
422132032021
51200321400
6134501213
732222400
oct12361611
95143660
102745225
11160558a
12b04809
137516c2
14516637
15393600
hex29e389

2745225 has 72 divisors (see below), whose sum is σ = 5937120. Its totient is φ = 1239840.

The previous prime is 2745209. The next prime is 2745229. The reversal of 2745225 is 5225472.

2745225 = T186 + T187 + ... + T283.

2745225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2745225 - 24 = 2745209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2745229) 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 71 ways as a sum of consecutive naturals, for example, 33034 + ... + 33116.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

22745225 is an apocalyptic number.

2745225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2745225 is an abundant number, since it is smaller than the sum of its proper divisors (3191895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2745225 is a wasteful number, since it uses less digits than its factorization.

2745225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 98 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 2745225 is about 1656.8720529962. The cubic root of 2745225 is about 140.0208302339.

The spelling of 2745225 in words is "two million, seven hundred forty-five thousand, two hundred twenty-five".

Divisors: 1 3 5 7 9 15 21 25 27 35 45 49 63 75 83 105 135 147 175 189 225 245 249 315 415 441 525 581 675 735 747 945 1225 1245 1323 1575 1743 2075 2205 2241 2905 3675 3735 4067 4725 5229 6225 6615 8715 11025 11205 12201 14525 15687 18675 20335 26145 33075 36603 43575 56025 61005 78435 101675 109809 130725 183015 305025 392175 549045 915075 2745225