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208814989341 = 3720983473887
BaseRepresentation
bin1100001001111001010…
…1111110000000011101
3201221222200020112121010
43002132111332000131
511410123114124331
6235532301525433
721041426060250
oct3023625760035
9657880215533
10208814989341
1180615688162
1234577873879
13168ca6629ba
14a16cad7097
1556722a7e46
hex309e57e01d

208814989341 has 16 divisors (see below), whose sum is σ = 318210105344. Its totient is φ = 119316912624.

The previous prime is 208814989337. The next prime is 208814989351. The reversal of 208814989341 is 143989418802.

208814989341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208814989341 - 22 = 208814989337 is a prime.

It is a super-2 number, since 2×2088149893412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208814989301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203700 + ... + 677586.

It is an arithmetic number, because the mean of its divisors is an integer number (19888131584).

Almost surely, 2208814989341 is an apocalyptic number.

208814989341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

208814989341 is a deficient number, since it is larger than the sum of its proper divisors (109395116003).

208814989341 is a wasteful number, since it uses less digits than its factorization.

208814989341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494880.

The product of its (nonzero) digits is 3981312, while the sum is 57.

The spelling of 208814989341 in words is "two hundred eight billion, eight hundred fourteen million, nine hundred eighty-nine thousand, three hundred forty-one".

Divisors: 1 3 7 21 20983 62949 146881 440643 473887 1421661 3317209 9951627 9943570921 29830712763 69604996447 208814989341