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490197252 = 223235930103
BaseRepresentation
bin11101001101111…
…101000100000100
31021011101121012210
4131031331010010
52000442303002
6120350343420
715101415336
oct3515750404
91234347183
10490197252
112317814a6
121181bab70
137a73225c
1449163456
152d07d96c
hex1d37d104

490197252 has 48 divisors (see below), whose sum is σ = 1213793280. Its totient is φ = 153640608.

The previous prime is 490197247. The next prime is 490197269. The reversal of 490197252 is 252791094.

It is a self number, because there is not a number n which added to its sum of digits gives 490197252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233 + ... + 31335.

It is an arithmetic number, because the mean of its divisors is an integer number (25287360).

Almost surely, 2490197252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490197252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606896640).

490197252 is an abundant number, since it is smaller than the sum of its proper divisors (723596028).

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

490197252 is a wasteful number, since it uses less digits than its factorization.

490197252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30192 (or 30190 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 490197252 is about 22140.3986413976. The cubic root of 490197252 is about 788.4792900456.

The spelling of 490197252 in words is "four hundred ninety million, one hundred ninety-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 23 46 59 69 92 118 138 177 236 276 354 708 1357 2714 4071 5428 8142 16284 30103 60206 90309 120412 180618 361236 692369 1384738 1776077 2077107 2769476 3552154 4154214 5328231 7104308 8308428 10656462 21312924 40849771 81699542 122549313 163399084 245098626 490197252