Search a number
-
+
206234880 = 2835431249
BaseRepresentation
bin11000100101011…
…10010100000000
3112101001211001220
430102232110000
5410244004010
632244155040
75052652605
oct1422562400
9471054056
10206234880
11a6461355
1259098a80
133395b197
141d5666ac
151318b970
hexc4ae500

206234880 has 144 divisors (see below), whose sum is σ = 674520000. Its totient is φ = 53673984.

The previous prime is 206234843. The next prime is 206234933. The reversal of 206234880 is 88432602.

It is a super-2 number, since 2×2062348802 = 85065651457228800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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, 164496 + ... + 165744.

Almost surely, 2206234880 is an apocalyptic number.

206234880 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 206234880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337260000).

206234880 is an abundant number, since it is smaller than the sum of its proper divisors (468285120).

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

206234880 is a wasteful number, since it uses less digits than its factorization.

206234880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 206234880 is about 14360.8801958654. The cubic root of 206234880 is about 590.8184370739.

The spelling of 206234880 in words is "two hundred six million, two hundred thirty-four thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 64 80 86 96 120 128 129 160 172 192 215 240 256 258 320 344 384 430 480 516 640 645 688 768 860 960 1032 1249 1280 1290 1376 1720 1920 2064 2498 2580 2752 3440 3747 3840 4128 4996 5160 5504 6245 6880 7494 8256 9992 10320 11008 12490 13760 14988 16512 18735 19984 20640 24980 27520 29976 33024 37470 39968 41280 49960 53707 55040 59952 74940 79936 82560 99920 107414 119904 149880 159872 161121 165120 199840 214828 239808 268535 299760 319744 322242 399680 429656 479616 537070 599520 644484 799360 805605 859312 959232 1074140 1199040 1288968 1598720 1611210 1718624 2148280 2398080 2577936 3222420 3437248 4296560 4796160 5155872 6444840 6874496 8593120 10311744 12889680 13748992 17186240 20623488 25779360 34372480 41246976 51558720 68744960 103117440 206234880