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3049531 = 11326987
BaseRepresentation
bin1011101000100000111011
312201221011121
423220200323
51240041111
6145210111
734630522
oct13504073
95657147
103049531
1117a3181
121030937
1382a074
145954b9
15403871
hex2e883b

3049531 has 4 divisors (see below), whose sum is σ = 3076632. Its totient is φ = 3022432.

The previous prime is 3049523. The next prime is 3049537. The reversal of 3049531 is 1359403.

3049531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1359403 = 3533851.

It is a cyclic number.

It is not a de Polignac number, because 3049531 - 23 = 3049523 is a prime.

It is a super-2 number, since 2×30495312 = 18599278639922, which contains 22 as substring.

It is a Duffinian number.

3049531 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3049496 and 3049505.

It is not an unprimeable number, because it can be changed into a prime (3049537) 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 3 ways as a sum of consecutive naturals, for example, 13381 + ... + 13606.

It is an arithmetic number, because the mean of its divisors is an integer number (769158).

Almost surely, 23049531 is an apocalyptic number.

3049531 is a deficient number, since it is larger than the sum of its proper divisors (27101).

3049531 is a wasteful number, since it uses less digits than its factorization.

3049531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27100.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3049531 is about 1746.2906401856. The cubic root of 3049531 is about 145.0143624299.

The spelling of 3049531 in words is "three million, forty-nine thousand, five hundred thirty-one".

Divisors: 1 113 26987 3049531