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8263889053 = 747194787
BaseRepresentation
bin1111011001001000…
…01111000010011101
3210022220222001121221
413230210033002131
5113411023422203
63444003453341
7411533620000
oct75444170235
923286861557
108263889053
113560828182
121727687251
13a191095a4
1458575b537
15335774abd
hex1ec90f09d

8263889053 has 20 divisors (see below), whose sum is σ = 9656055360. Its totient is φ = 7072004184.

The previous prime is 8263889047. The next prime is 8263889063. The reversal of 8263889053 is 3509883628.

It is a happy number.

It is not a de Polignac number, because 8263889053 - 225 = 8230334621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8263889003) 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 19 ways as a sum of consecutive naturals, for example, 1723926 + ... + 1728712.

It is an arithmetic number, because the mean of its divisors is an integer number (482802768).

Almost surely, 28263889053 is an apocalyptic number.

It is an amenable number.

8263889053 is a deficient number, since it is larger than the sum of its proper divisors (1392166307).

8263889053 is an frugal number, since it uses more digits than its factorization.

8263889053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534 (or 5513 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The square root of 8263889053 is about 90905.9351912734. The cubic root of 8263889053 is about 2021.7532937077.

The spelling of 8263889053 in words is "eight billion, two hundred sixty-three million, eight hundred eighty-nine thousand, fifty-three".

Divisors: 1 7 49 343 719 2401 4787 5033 33509 35231 234563 246617 1641941 1726319 3441853 11493587 24092971 168650797 1180555579 8263889053