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3006149 = 19115739
BaseRepresentation
bin1011011101111011000101
312122201122212
423131323011
51232144044
6144233205
734360166
oct13357305
95581585
103006149
111773623
12100b805
138133b3
1458376d
153e5a9e
hex2ddec5

3006149 has 4 divisors (see below), whose sum is σ = 3022080. Its totient is φ = 2990220.

The previous prime is 3006121. The next prime is 3006151. The reversal of 3006149 is 9416003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9416003 = 28373319.

It is a cyclic number.

It is not a de Polignac number, because 3006149 - 220 = 1957573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3006119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7679 + ... + 8060.

It is an arithmetic number, because the mean of its divisors is an integer number (755520).

Almost surely, 23006149 is an apocalyptic number.

It is an amenable number.

3006149 is a deficient number, since it is larger than the sum of its proper divisors (15931).

3006149 is a wasteful number, since it uses less digits than its factorization.

3006149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15930.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3006149 is about 1733.8249623304. The cubic root of 3006149 is about 144.3234274798.

The spelling of 3006149 in words is "three million, six thousand, one hundred forty-nine".

Divisors: 1 191 15739 3006149