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208341396080 = 24517509300967
BaseRepresentation
bin1100001000001000011…
…1010110101001110000
3201220202200002111202222
43002002013112221300
511403140344133310
6235413303100212
721023615435006
oct3020207265160
9656680074688
10208341396080
11803a2317574
1234465141668
13168534c51bc
14a125c56a76
155645909055
hex30821d6a70

208341396080 has 80 divisors (see below), whose sum is σ = 513896840640. Its totient is φ = 78280052736.

The previous prime is 208341396079. The next prime is 208341396101. The reversal of 208341396080 is 80693143802.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2083413960802 (a number of 23 digits) contains 22 as substring.

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, 541757 + ... + 842723.

It is an arithmetic number, because the mean of its divisors is an integer number (6423710508).

Almost surely, 2208341396080 is an apocalyptic number.

208341396080 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 208341396080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256948420320).

208341396080 is an abundant number, since it is smaller than the sum of its proper divisors (305555444560).

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

208341396080 is a wasteful number, since it uses less digits than its factorization.

208341396080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301506 (or 301500 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 208341396080 in words is "two hundred eight billion, three hundred forty-one million, three hundred ninety-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 509 680 1018 1360 2036 2545 4072 5090 8144 8653 10180 17306 20360 34612 40720 43265 69224 86530 138448 173060 300967 346120 601934 692240 1203868 1504835 2407736 3009670 4815472 5116439 6019340 10232878 12038680 20465756 24077360 25582195 40931512 51164390 81863024 102328780 153192203 204657560 306384406 409315120 612768812 765961015 1225537624 1531922030 2451075248 2604267451 3063844060 5208534902 6127688120 10417069804 12255376240 13021337255 20834139608 26042674510 41668279216 52085349020 104170698040 208341396080