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3249025 = 52132769
BaseRepresentation
bin1100011001001110000001
320010001211021
430121032001
51312432100
6153345441
736421243
oct14311601
96101737
103249025
11191a04a
121108281
13899b00
14608093
15442a1a
hex319381

3249025 has 18 divisors (see below), whose sum is σ = 4368210. Its totient is φ = 2396160.

The previous prime is 3249013. The next prime is 3249053. The reversal of 3249025 is 5209423.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 2241009 + 1008016 = 1497^2 + 1004^2 .

It is not a de Polignac number, because 3249025 - 211 = 3246977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an Ulam number.

3249025 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3841 + ... + 4609.

Almost surely, 23249025 is an apocalyptic number.

It is an amenable number.

3249025 is a deficient number, since it is larger than the sum of its proper divisors (1119185).

3249025 is a wasteful number, since it uses less digits than its factorization.

3249025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3249025 is about 1802.5052011021. The cubic root of 3249025 is about 148.1099894585.

It can be divided in two parts, 324 and 9025, that multiplied together give a square (2924100 = 17102).

The spelling of 3249025 in words is "three million, two hundred forty-nine thousand, twenty-five".

Divisors: 1 5 13 25 65 169 325 769 845 3845 4225 9997 19225 49985 129961 249925 649805 3249025