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427388 = 22138219
BaseRepresentation
bin1101000010101111100
3210201021012
41220111330
5102134023
613054352
73430013
oct1502574
9721235
10427388
11272115
121873b8
1311c6c0
14b1a7a
1586978
hex6857c

427388 has 12 divisors (see below), whose sum is σ = 805560. Its totient is φ = 197232.

The previous prime is 427381. The next prime is 427403. The reversal of 427388 is 883724.

427388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 427388.

It is not an unprimeable number, because it can be changed into a prime (427381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4058 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (67130).

2427388 is an apocalyptic number.

It is an amenable number.

427388 is a deficient number, since it is larger than the sum of its proper divisors (378172).

427388 is a wasteful number, since it uses less digits than its factorization.

427388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236 (or 8234 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 427388 is about 653.7491873800. The cubic root of 427388 is about 75.3252834656.

The spelling of 427388 in words is "four hundred twenty-seven thousand, three hundred eighty-eight".

Divisors: 1 2 4 13 26 52 8219 16438 32876 106847 213694 427388