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208020396 = 223109359443
BaseRepresentation
bin11000110011000…
…10001110101100
3112111102112100010
430121202032230
5411223123041
632350333220
75104100313
oct1431421654
9474375303
10208020396
11a7470891
12597ba210
1334134abc
141d8ad27a
15133e0a16
hexc6623ac

208020396 has 48 divisors (see below), whose sum is σ = 492307200. Its totient is φ = 68357952.

The previous prime is 208020383. The next prime is 208020419. The reversal of 208020396 is 693020802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469351 + ... + 469793.

It is an arithmetic number, because the mean of its divisors is an integer number (10256400).

Almost surely, 2208020396 is an apocalyptic number.

It is an amenable number.

208020396 is an abundant number, since it is smaller than the sum of its proper divisors (284286804).

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

208020396 is a wasteful number, since it uses less digits than its factorization.

208020396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 208020396 is about 14422.9121885977. The cubic root of 208020396 is about 592.5185794170.

The spelling of 208020396 in words is "two hundred eight million, twenty thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 109 218 327 359 436 443 654 718 886 1077 1308 1329 1436 1772 2154 2658 4308 5316 39131 48287 78262 96574 117393 144861 156524 159037 193148 234786 289722 318074 469572 477111 579444 636148 954222 1908444 17335033 34670066 52005099 69340132 104010198 208020396