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301420247 = 510759021
BaseRepresentation
bin10001111101110…
…100111011010111
3210000011201211212
4101331310323113
51104130421442
645524252035
710320013142
oct2175647327
9700151755
10301420247
11145164547
1284b4101b
134a5a739b
142c063059
151b6dea82
hex11f74ed7

301420247 has 4 divisors (see below), whose sum is σ = 301484376. Its totient is φ = 301356120.

The previous prime is 301420219. The next prime is 301420253. The reversal of 301420247 is 742024103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742024103 = 1031719713.

It is a cyclic number.

It is not a de Polignac number, because 301420247 - 224 = 284643031 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 (301420547) 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, 24404 + ... + 34617.

It is an arithmetic number, because the mean of its divisors is an integer number (75371094).

Almost surely, 2301420247 is an apocalyptic number.

301420247 is a deficient number, since it is larger than the sum of its proper divisors (64129).

301420247 is an equidigital number, since it uses as much as digits as its factorization.

301420247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64128.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 301420247 is about 17361.4586656767. The cubic root of 301420247 is about 670.4876875528.

The spelling of 301420247 in words is "three hundred one million, four hundred twenty thousand, two hundred forty-seven".

Divisors: 1 5107 59021 301420247