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220258400 = 2552275323
BaseRepresentation
bin11010010000011…
…10000001100000
3120100110021201112
431020032001200
5422341232100
633504522452
75313110525
oct1510160140
9510407645
10220258400
1110336a43a
1261920428
133682b21b
142137714c
151450bb35
hexd20e060

220258400 has 36 divisors (see below), whose sum is σ = 537707772. Its totient is φ = 88103040.

The previous prime is 220258397. The next prime is 220258421. The reversal of 220258400 is 4852022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 136862 + ... + 138461.

It is an arithmetic number, because the mean of its divisors is an integer number (14936327).

Almost surely, 2220258400 is an apocalyptic number.

220258400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220258400 is an abundant number, since it is smaller than the sum of its proper divisors (317449372).

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

220258400 is a wasteful number, since it uses less digits than its factorization.

220258400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275343 (or 275330 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 220258400 is about 14841.1050801482. The cubic root of 220258400 is about 603.9173314924.

The spelling of 220258400 in words is "two hundred twenty million, two hundred fifty-eight thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 275323 550646 1101292 1376615 2202584 2753230 4405168 5506460 6883075 8810336 11012920 13766150 22025840 27532300 44051680 55064600 110129200 220258400