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494420 = 22559419
BaseRepresentation
bin1111000101101010100
3221010012212
41320231110
5111310140
614332552
74126313
oct1705524
9833185
10494420
11308513
121ba158
13144074
14cc27a
159b765
hex78b54

494420 has 24 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 193952.

The previous prime is 494413. The next prime is 494441. The reversal of 494420 is 24494.

It is a happy number.

It is a super-2 number, since 2×4944202 = 488902272800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

494420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971 + ... + 1389.

It is an arithmetic number, because the mean of its divisors is an integer number (44100).

2494420 is an apocalyptic number.

It is an amenable number.

494420 is an abundant number, since it is smaller than the sum of its proper divisors (563980).

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

494420 is a wasteful number, since it uses less digits than its factorization.

494420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 494420 is about 703.1500551091. The cubic root of 494420 is about 79.0736907873.

The spelling of 494420 in words is "four hundred ninety-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 59 118 236 295 419 590 838 1180 1676 2095 4190 8380 24721 49442 98884 123605 247210 494420