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300000131 = 1193251467
BaseRepresentation
bin10001111000011…
…010001110000011
3202220111120210222
4101320122032003
51103300001011
645434013255
710301646644
oct2170321603
9686446728
10300000131
111443845a2
128457722b
134a1cab92
142bbb36cb
151b50dddb
hex11e1a383

300000131 has 4 divisors (see below), whose sum is σ = 300252792. Its totient is φ = 299747472.

The previous prime is 300000119. The next prime is 300000137. The reversal of 300000131 is 131000003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-300000131 is a prime.

It is a super-2 number, since 2×3000001312 = 180000157200034322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (300000137) 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, 124541 + ... + 126926.

It is an arithmetic number, because the mean of its divisors is an integer number (75063198).

Almost surely, 2300000131 is an apocalyptic number.

300000131 is a deficient number, since it is larger than the sum of its proper divisors (252661).

300000131 is a wasteful number, since it uses less digits than its factorization.

300000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252660.

The product of its (nonzero) digits is 9, while the sum is 8.

The square root of 300000131 is about 17320.5118573326. The cubic root of 300000131 is about 669.4330475218.

Adding to 300000131 its reverse (131000003), we get a palindrome (431000134).

The spelling of 300000131 in words is "three hundred million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 1193 251467 300000131