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250220 = 22512511
BaseRepresentation
bin111101000101101100
3110201020102
4331011230
531001340
65210232
72061335
oct750554
9421212
10250220
11160aa3
12100978
1389b79
146728c
154e215
hex3d16c

250220 has 12 divisors (see below), whose sum is σ = 525504. Its totient is φ = 100080.

The previous prime is 250199. The next prime is 250253. The reversal of 250220 is 22052.

It is a super-2 number, since 2×2502202 = 125220096800, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6236 + ... + 6275.

It is an arithmetic number, because the mean of its divisors is an integer number (43792).

2250220 is an apocalyptic number.

250220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250220 is an abundant number, since it is smaller than the sum of its proper divisors (275284).

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

250220 is a wasteful number, since it uses less digits than its factorization.

250220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520 (or 12518 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 250220 is about 500.2199516213. The cubic root of 250220 is about 63.0145259190.

Adding to 250220 its reverse (22052), we get a palindrome (272272).

The spelling of 250220 in words is "two hundred fifty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 12511 25022 50044 62555 125110 250220