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427799243 = 1858323021
BaseRepresentation
bin11001011111111…
…011001011001011
31002210222110020102
4121133323023023
51334004033433
6110241120015
713413143054
oct3137731313
91083873212
10427799243
111aa5329a3
12bb32900b
136a825961
1440b5d72b
15278554e8
hex197fb2cb

427799243 has 4 divisors (see below), whose sum is σ = 427840848. Its totient is φ = 427757640.

The previous prime is 427799209. The next prime is 427799257. The reversal of 427799243 is 342997724.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 427799243 - 26 = 427799179 is a prime.

It is a super-2 number, since 2×4277992432 = 366024384622746098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427799263) 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, 7073 + ... + 30093.

It is an arithmetic number, because the mean of its divisors is an integer number (106960212).

Almost surely, 2427799243 is an apocalyptic number.

427799243 is a deficient number, since it is larger than the sum of its proper divisors (41605).

427799243 is a wasteful number, since it uses less digits than its factorization.

427799243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41604.

The product of its digits is 762048, while the sum is 47.

The square root of 427799243 is about 20683.3083185452. The cubic root of 427799243 is about 753.4943565304.

The spelling of 427799243 in words is "four hundred twenty-seven million, seven hundred ninety-nine thousand, two hundred forty-three".

Divisors: 1 18583 23021 427799243