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8122770882 = 234732972
BaseRepresentation
bin1111001000010011…
…11010010111000010
3202222002102111220000
413210021322113002
5113113412132012
63422003100430
7405201261522
oct74411722702
922862374800
108122770882
113499101a96
1216a8371716
139c5aca305
14570b05682
1532819bddc
hex1e427a5c2

8122770882 has 90 divisors (see below), whose sum is σ = 18645974523. Its totient is φ = 2642969088.

The previous prime is 8122770869. The next prime is 8122770889. The reversal of 8122770882 is 2880772218.

It can be written as a sum of positive squares in 5 ways, for example, as 4197873681 + 3924897201 = 64791^2 + 62649^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=63729.

It is not an unprimeable number, because it can be changed into a prime (8122770889) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 83739858 + ... + 83739954.

Almost surely, 28122770882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8122770882

8122770882 is an abundant number, since it is smaller than the sum of its proper divisors (10523203641).

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

8122770882 is an frugal number, since it uses more digits than its factorization.

8122770882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 8122770882 is about 90126.4161164750. The cubic root of 8122770882 is about 2010.1790127934.

The spelling of 8122770882 in words is "eight billion, one hundred twenty-two million, seven hundred seventy thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 73 81 97 146 162 194 219 291 438 582 657 873 1314 1746 1971 2619 3942 5238 5329 5913 7081 7857 9409 10658 11826 14162 15714 15987 18818 21243 28227 31974 42486 47961 56454 63729 84681 95922 127458 143883 169362 191187 254043 287766 382374 431649 508086 516913 573561 686857 762129 863298 1033826 1147122 1373714 1524258 1550739 2060571 3101478 4121142 4652217 6181713 9304434 12363426 13956651 18545139 27913302 37090278 41869953 50140561 55635417 83739906 100281122 111270834 150421683 300843366 451265049 902530098 1353795147 2707590294 4061385441 8122770882