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472291 = 2332027
BaseRepresentation
bin1110011010011100011
3212222212021
41303103203
5110103131
614042311
74004641
oct1632343
9788767
10472291
112a2926
121a9397
13136c81
14c4191
1594e11
hex734e3

472291 has 4 divisors (see below), whose sum is σ = 474552. Its totient is φ = 470032.

The previous prime is 472289. The next prime is 472301. The reversal of 472291 is 192274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 192274 = 296137.

It is a cyclic number.

It is not a de Polignac number, because 472291 - 21 = 472289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (118638).

2472291 is an apocalyptic number.

472291 is a deficient number, since it is larger than the sum of its proper divisors (2261).

472291 is a wasteful number, since it uses less digits than its factorization.

472291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260.

The product of its digits is 1008, while the sum is 25.

The square root of 472291 is about 687.2343122982. The cubic root of 472291 is about 77.8759259054.

The spelling of 472291 in words is "four hundred seventy-two thousand, two hundred ninety-one".

Divisors: 1 233 2027 472291