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3049985 = 5609997
BaseRepresentation
bin1011101000101000000001
312201221210102
423220220001
51240044420
6145212145
734632041
oct13505001
95657712
103049985
1117a3554
121031055
1382a333
14595721
15403a75
hex2e8a01

3049985 has 4 divisors (see below), whose sum is σ = 3659988. Its totient is φ = 2439984.

The previous prime is 3049973. The next prime is 3049993. The reversal of 3049985 is 5899403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5899403 = 19872969.

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 628849 = 1556^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 3049985 - 28 = 3049729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304994 + ... + 305003.

It is an arithmetic number, because the mean of its divisors is an integer number (914997).

Almost surely, 23049985 is an apocalyptic number.

It is an amenable number.

3049985 is a deficient number, since it is larger than the sum of its proper divisors (610003).

3049985 is an equidigital number, since it uses as much as digits as its factorization.

3049985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610002.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 3049985 is about 1746.4206251645. The cubic root of 3049985 is about 145.0215584275.

The spelling of 3049985 in words is "three million, forty-nine thousand, nine hundred eighty-five".

Divisors: 1 5 609997 3049985