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428458 = 2593631
BaseRepresentation
bin1101000100110101010
3210202201211
41220212222
5102202313
613103334
73433102
oct1504652
9722654
10428458
112729a8
12187b4a
13120034
14b2202
1586e3d
hex689aa

428458 has 8 divisors (see below), whose sum is σ = 653760. Its totient is φ = 210540.

The previous prime is 428429. The next prime is 428471. The reversal of 428458 is 854824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698 + ... + 1933.

It is an arithmetic number, because the mean of its divisors is an integer number (81720).

2428458 is an apocalyptic number.

428458 is a deficient number, since it is larger than the sum of its proper divisors (225302).

428458 is a wasteful number, since it uses less digits than its factorization.

428458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692.

The product of its digits is 10240, while the sum is 31.

The square root of 428458 is about 654.5670324726. The cubic root of 428458 is about 75.3880920342.

The spelling of 428458 in words is "four hundred twenty-eight thousand, four hundred fifty-eight".

Divisors: 1 2 59 118 3631 7262 214229 428458