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8419661082 = 2327213172871
BaseRepresentation
bin1111101011101100…
…11101010100011010
3210201210002002200100
413311312131110122
5114220413123312
63511250320230
7415434636600
oct76566352432
923653062610
108419661082
113630751a98
12176b889076
13a424797a1
1459c309870
153442945dc
hex1f5d9d51a

8419661082 has 72 divisors (see below), whose sum is σ = 21383268192. Its totient is φ = 2387221200.

The previous prime is 8419661071. The next prime is 8419661087. The reversal of 8419661082 is 2801669148.

It is not an unprimeable number, because it can be changed into a prime (8419661087) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 79107 + ... + 151977.

It is an arithmetic number, because the mean of its divisors is an integer number (296989836).

Almost surely, 28419661082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8419661082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10691634096).

8419661082 is an abundant number, since it is smaller than the sum of its proper divisors (12963607110).

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

8419661082 is a wasteful number, since it uses less digits than its factorization.

8419661082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73024 (or 73014 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 8419661082 is about 91758.7112049859. The cubic root of 8419661082 is about 2034.3774661087.

The spelling of 8419661082 in words is "eight billion, four hundred nineteen million, six hundred sixty-one thousand, eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 131 147 262 294 393 441 786 882 917 1179 1834 2358 2751 5502 6419 8253 12838 16506 19257 38514 57771 72871 115542 145742 218613 437226 510097 655839 1020194 1311678 1530291 3060582 3570679 4590873 7141358 9181746 9546101 10712037 19092202 21424074 28638303 32136111 57276606 64272222 66822707 85914909 133645414 171829818 200468121 400936242 467758949 601404363 935517898 1202808726 1403276847 2806553694 4209830541 8419661082