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8228287540 = 2251141912227
BaseRepresentation
bin1111010100111000…
…11011010000110100
3210020102222022112101
413222130123100310
5113322420200130
63440252431444
7410622201334
oct75234332064
923212868471
108228287540
113542721240
121717778584
13a11922ac5
14580b310c4
153325911ca
hex1ea71b434

8228287540 has 48 divisors (see below), whose sum is σ = 19310042304. Its totient is φ = 2919123200.

The previous prime is 8228287517. The next prime is 8228287547. The reversal of 8228287540 is 457828228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8228287547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447094 + ... + 465133.

It is an arithmetic number, because the mean of its divisors is an integer number (402292548).

Almost surely, 28228287540 is an apocalyptic number.

It is an amenable number.

8228287540 is an abundant number, since it is smaller than the sum of its proper divisors (11081754764).

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

8228287540 is a wasteful number, since it uses less digits than its factorization.

8228287540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912288 (or 912286 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 46.

The square root of 8228287540 is about 90709.9087200511. The cubic root of 8228287540 is about 2018.8458213934.

The spelling of 8228287540 in words is "eight billion, two hundred twenty-eight million, two hundred eighty-seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 41 44 55 82 110 164 205 220 410 451 820 902 1804 2255 4510 9020 912227 1824454 3648908 4561135 9122270 10034497 18244540 20068994 37401307 40137988 50172485 74802614 100344970 149605228 187006535 200689940 374013070 411414377 748026140 822828754 1645657508 2057071885 4114143770 8228287540