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301421431 = 619486949
BaseRepresentation
bin10001111101110…
…101001101110111
3210000011210110201
4101331311031313
51104130441211
645524301331
710320016453
oct2175651567
9700153421
10301421431
11145165423
1284b41847
134a5a7a9c
142c063663
151b6e00c1
hex11f75377

301421431 has 4 divisors (see below), whose sum is σ = 301909000. Its totient is φ = 300933864.

The previous prime is 301421423. The next prime is 301421507. The reversal of 301421431 is 134124103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134124103 = 791916937.

It is a cyclic number.

It is not a de Polignac number, because 301421431 - 23 = 301421423 is a prime.

It is a super-2 number, since 2×3014214312 = 181709758132175522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 301421399 and 301421408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301422431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242856 + ... + 244093.

It is an arithmetic number, because the mean of its divisors is an integer number (75477250).

Almost surely, 2301421431 is an apocalyptic number.

301421431 is a deficient number, since it is larger than the sum of its proper divisors (487569).

301421431 is an equidigital number, since it uses as much as digits as its factorization.

301421431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487568.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 301421431 is about 17361.4927641606. The cubic root of 301421431 is about 670.4885654593.

Adding to 301421431 its reverse (134124103), we get a palindrome (435545534).

The spelling of 301421431 in words is "three hundred one million, four hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 619 486949 301421431