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3042521 = 5775273
BaseRepresentation
bin1011100110110011011001
312201120112222
423212303121
51234330041
6145113425
734601216
oct13466331
95646488
103042521
111798989
121028875
13826b11
14592b0d
1540174b
hex2e6cd9

3042521 has 4 divisors (see below), whose sum is σ = 3048372. Its totient is φ = 3036672.

The previous prime is 3042493. The next prime is 3042553. The reversal of 3042521 is 1252403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2496400 + 546121 = 1580^2 + 739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3042521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3042521.

It is not an unprimeable number, because it can be changed into a prime (3042581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (762093).

Almost surely, 23042521 is an apocalyptic number.

It is an amenable number.

3042521 is a deficient number, since it is larger than the sum of its proper divisors (5851).

3042521 is an equidigital number, since it uses as much as digits as its factorization.

3042521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3042521 is about 1744.2823739292. The cubic root of 3042521 is about 144.9031616587.

Adding to 3042521 its reverse (1252403), we get a palindrome (4294924).

The spelling of 3042521 in words is "three million, forty-two thousand, five hundred twenty-one".

Divisors: 1 577 5273 3042521