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200424220 = 225172920327
BaseRepresentation
bin10111111001000…
…11101100011100
3111222010121100021
423330203230130
5402302033340
631515441524
74652402113
oct1374435434
9458117307
10200424220
11a3152757
12571562a4
13326a5419
141c892c7a
15128dee4a
hexbf23b1c

200424220 has 48 divisors (see below), whose sum is σ = 461039040. Its totient is φ = 72848384.

The previous prime is 200424209. The next prime is 200424233. The reversal of 200424220 is 22424002.

It is a super-3 number, since 3×2004242203 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200424194 and 200424203.

It is a congruent number.

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, 304 + ... + 20023.

It is an arithmetic number, because the mean of its divisors is an integer number (9604980).

Almost surely, 2200424220 is an apocalyptic number.

200424220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200424220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230519520).

200424220 is an abundant number, since it is smaller than the sum of its proper divisors (260614820).

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

200424220 is a wasteful number, since it uses less digits than its factorization.

200424220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20382 (or 20380 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 200424220 is about 14157.1261207916. The cubic root of 200424220 is about 585.2167312472.

Adding to 200424220 its reverse (22424002), we get a palindrome (222848222).

The spelling of 200424220 in words is "two hundred million, four hundred twenty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 29 34 58 68 85 116 145 170 290 340 493 580 986 1972 2465 4930 9860 20327 40654 81308 101635 203270 345559 406540 589483 691118 1178966 1382236 1727795 2357932 2947415 3455590 5894830 6911180 10021211 11789660 20042422 40084844 50106055 100212110 200424220