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208668200 = 235213174721
BaseRepresentation
bin11000111000000…
…00011000101000
3112112122102221212
430130000120220
5411404340300
632412252252
75112436046
oct1434003050
9475572855
10208668200
11a7873564
1259a71088
1334300910
141d9db396
15134bc935
hexc700628

208668200 has 96 divisors (see below), whose sum is σ = 553323960. Its totient is φ = 72499200.

The previous prime is 208668193. The next prime is 208668221. The reversal of 208668200 is 2866802.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 10252804 + 198415396 = 3202^2 + 14086^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41840 + ... + 46560.

Almost surely, 2208668200 is an apocalyptic number.

208668200 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 208668200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276661980).

208668200 is an abundant number, since it is smaller than the sum of its proper divisors (344655760).

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

208668200 is a wasteful number, since it uses less digits than its factorization.

208668200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4767 (or 4758 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 208668200 is about 14445.3521936988. The cubic root of 208668200 is about 593.1330033900.

The spelling of 208668200 in words is "two hundred eight million, six hundred sixty-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 17 20 25 26 34 40 50 52 65 68 85 100 104 130 136 170 200 221 260 325 340 425 442 520 650 680 850 884 1105 1300 1700 1768 2210 2600 3400 4420 4721 5525 8840 9442 11050 18884 22100 23605 37768 44200 47210 61373 80257 94420 118025 122746 160514 188840 236050 245492 306865 321028 401285 472100 490984 613730 642056 802570 944200 1043341 1227460 1534325 1605140 2006425 2086682 2454920 3068650 3210280 4012850 4173364 5216705 6137300 8025700 8346728 10433410 12274600 16051400 20866820 26083525 41733640 52167050 104334100 208668200