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502240 = 2554373
BaseRepresentation
bin1111010100111100000
3221111221111
41322213200
5112032430
614433104
74161154
oct1724740
9844844
10502240
11313382
12202794
131477ab
14d1064
159dc2a
hex7a9e0

502240 has 48 divisors (see below), whose sum is σ = 1230768. Its totient is φ = 193536.

The previous prime is 502237. The next prime is 502247. The reversal of 502240 is 42205.

It is a happy number.

It is a plaindrome in base 13.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 502240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6844 + ... + 6916.

It is an arithmetic number, because the mean of its divisors is an integer number (25641).

2502240 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 502240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615384).

502240 is an abundant number, since it is smaller than the sum of its proper divisors (728528).

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

502240 is a wasteful number, since it uses less digits than its factorization.

502240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 502240 is about 708.6889303496. The cubic root of 502240 is about 79.4884019841.

Adding to 502240 its reverse (42205), we get a palindrome (544445).

The spelling of 502240 in words is "five hundred two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 73 80 86 146 160 172 215 292 344 365 430 584 688 730 860 1168 1376 1460 1720 2336 2920 3139 3440 5840 6278 6880 11680 12556 15695 25112 31390 50224 62780 100448 125560 251120 502240