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428568 = 23372551
BaseRepresentation
bin1101000101000011000
3210202212220
41220220120
5102203233
613104040
73433320
oct1505030
9722786
10428568
11272a98
12188020
131200ba
14b2280
1586eb3
hex68a18

428568 has 32 divisors (see below), whose sum is σ = 1224960. Its totient is φ = 122400.

The previous prime is 428567. The next prime is 428569. The reversal of 428568 is 865824.

It is an interprime number because it is at equal distance from previous prime (428567) and next prime (428569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 1443.

It is an arithmetic number, because the mean of its divisors is an integer number (38280).

2428568 is an apocalyptic number.

It is an amenable number.

428568 is an abundant number, since it is smaller than the sum of its proper divisors (796392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428568 is a wasteful number, since it uses less digits than its factorization.

428568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2563 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 428568 is about 654.6510520881. The cubic root of 428568 is about 75.3945430597.

The spelling of 428568 in words is "four hundred twenty-eight thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 2551 5102 7653 10204 15306 17857 20408 30612 35714 53571 61224 71428 107142 142856 214284 428568