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490212 = 22341789
BaseRepresentation
bin1110111101011100100
3220220110000
41313223210
5111141322
614301300
74111122
oct1675344
9826400
10490212
11305338
121b7830
13142188
14ca912
159a3ac
hex77ae4

490212 has 60 divisors (see below), whose sum is σ = 1372140. Its totient is φ = 152064.

The previous prime is 490207. The next prime is 490223. The reversal of 490212 is 212094.

It can be written as a sum of positive squares in 2 ways, for example, as 236196 + 254016 = 486^2 + 504^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5464 + ... + 5552.

It is an arithmetic number, because the mean of its divisors is an integer number (22869).

2490212 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 490212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686070).

490212 is an abundant number, since it is smaller than the sum of its proper divisors (881928).

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

490212 is a wasteful number, since it uses less digits than its factorization.

490212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 490212 is about 700.1514121960. The cubic root of 490212 is about 78.8487197322.

The spelling of 490212 in words is "four hundred ninety thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 81 89 102 108 153 162 178 204 267 306 324 356 459 534 612 801 918 1068 1377 1513 1602 1836 2403 2754 3026 3204 4539 4806 5508 6052 7209 9078 9612 13617 14418 18156 27234 28836 40851 54468 81702 122553 163404 245106 490212