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7645241 = 291132333
BaseRepresentation
bin11101001010100000111001
3112101102022002
4131022200321
53424121431
6431510345
7121661222
oct35124071
915342262
107645241
114351a8a
1226883b5
131778b16
141030249
15a103cb
hex74a839

7645241 has 8 divisors (see below), whose sum is σ = 7982280. Its totient is φ = 7313152.

The previous prime is 7645237. The next prime is 7645283. The reversal of 7645241 is 1425467.

7645241 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16 + 7645225 = 4^2 + 2765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7645241 - 22 = 7645237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7641241) 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 7 ways as a sum of consecutive naturals, for example, 2111 + ... + 4443.

It is an arithmetic number, because the mean of its divisors is an integer number (997785).

Almost surely, 27645241 is an apocalyptic number.

It is an amenable number.

7645241 is a deficient number, since it is larger than the sum of its proper divisors (337039).

7645241 is a wasteful number, since it uses less digits than its factorization.

7645241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475.

The product of its digits is 6720, while the sum is 29.

The square root of 7645241 is about 2765.0028933077. The cubic root of 7645241 is about 196.9988662358.

The spelling of 7645241 in words is "seven million, six hundred forty-five thousand, two hundred forty-one".

Divisors: 1 29 113 2333 3277 67657 263629 7645241