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83051407868208 = 2431317311777142123
BaseRepresentation
bin10010111000100011101001…
…101010100000000100110000
3101220001122012102002120210220
4102320203221222200010300
541341203240403240313
6452345142353053040
723331160211053263
oct2270435152400460
9356048172076726
1083051407868208
112450a9a466110a
129393b04557180
133745939006a40
1416719d117acda
1599055741d823
hex4b88e9aa0130

83051407868208 has 320 divisors, whose sum is σ = 252680299425792. Its totient is φ = 23261983211520.

The previous prime is 83051407868207. The next prime is 83051407868291. The reversal of 83051407868208 is 80286870415038.

It is not an unprimeable number, because it can be changed into a prime (83051407868207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 584291835 + ... + 584433957.

Almost surely, 283051407868208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83051407868208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126340149712896).

83051407868208 is an abundant number, since it is smaller than the sum of its proper divisors (169628891557584).

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

83051407868208 is a wasteful number, since it uses less digits than its factorization.

83051407868208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143972 (or 143966 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 83051407868208 in words is "eighty-three trillion, fifty-one billion, four hundred seven million, eight hundred sixty-eight thousand, two hundred eight".