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490626 = 23297281
BaseRepresentation
bin1110111110010000010
3220221000100
41313302002
5111200001
614303230
74112253
oct1676202
9827010
10490626
11305684
121b7b16
13142416
14cab2a
159a586
hex77c82

490626 has 24 divisors (see below), whose sum is σ = 1077804. Its totient is φ = 161280.

The previous prime is 490619. The next prime is 490627. The reversal of 490626 is 626094.

It can be written as a sum of positive squares in 2 ways, for example, as 488601 + 2025 = 699^2 + 45^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 490626.

It is not an unprimeable number, because it can be changed into a prime (490627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1606 + ... + 1886.

2490626 is an apocalyptic number.

490626 is an abundant number, since it is smaller than the sum of its proper divisors (587178).

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

490626 is a wasteful number, since it uses less digits than its factorization.

490626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 490626 is about 700.4470001363. The cubic root of 490626 is about 78.8709102572.

The spelling of 490626 in words is "four hundred ninety thousand, six hundred twenty-six".

Divisors: 1 2 3 6 9 18 97 194 281 291 562 582 843 873 1686 1746 2529 5058 27257 54514 81771 163542 245313 490626