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808087221 = 3223103151251
BaseRepresentation
bin110000001010100…
…110111010110101
32002022120002021100
4300022212322311
53123332242341
6212104040313
726011425264
oct6012467265
92068502240
10808087221
11385164987
121a6763099
13cb554c26
14794725db
154ae233b6
hex302a6eb5

808087221 has 48 divisors (see below), whose sum is σ = 1242888192. Its totient is φ = 504900000.

The previous prime is 808087183. The next prime is 808087223. The reversal of 808087221 is 122780808.

808087221 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 808087221 - 29 = 808086709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808087223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3219346 + ... + 3219596.

It is an arithmetic number, because the mean of its divisors is an integer number (25893504).

Almost surely, 2808087221 is an apocalyptic number.

It is an amenable number.

808087221 is a deficient number, since it is larger than the sum of its proper divisors (434800971).

808087221 is a wasteful number, since it uses less digits than its factorization.

808087221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 808087221 is about 28426.8749777389. The cubic root of 808087221 is about 931.4354143010.

The spelling of 808087221 in words is "eight hundred eight million, eighty-seven thousand, two hundred twenty-one".

Divisors: 1 3 9 23 69 103 151 207 251 309 453 753 927 1359 2259 2369 3473 5773 7107 10419 15553 17319 21321 25853 31257 37901 46659 51957 77559 113703 139977 232677 341109 357719 594619 871723 1073157 1783857 2615169 3219471 3903803 5351571 7845507 11711409 35134227 89787469 269362407 808087221