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300134149 = 742876307
BaseRepresentation
bin10001111000111…
…010111100000101
3202220202101122121
4101320322330011
51103313243044
645440525541
710303045450
oct2170727405
9686671577
10300134149
11144466257
12846208b1
134a246b93
142bc0a497
151b538984
hex11e3af05

300134149 has 4 divisors (see below), whose sum is σ = 343010464. Its totient is φ = 257257836.

The previous prime is 300134143. The next prime is 300134161. The reversal of 300134149 is 941431003.

It is a happy number.

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: 941431003 = 6714051209.

It is a cyclic number.

It is not a de Polignac number, because 300134149 - 211 = 300132101 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 (300134143) 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, 21438147 + ... + 21438160.

It is an arithmetic number, because the mean of its divisors is an integer number (85752616).

Almost surely, 2300134149 is an apocalyptic number.

It is an amenable number.

300134149 is a deficient number, since it is larger than the sum of its proper divisors (42876315).

300134149 is an equidigital number, since it uses as much as digits as its factorization.

300134149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42876314.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 300134149 is about 17324.3801909332. The cubic root of 300134149 is about 669.5327171694.

The spelling of 300134149 in words is "three hundred million, one hundred thirty-four thousand, one hundred forty-nine".

Divisors: 1 7 42876307 300134149