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83048385040 = 24517102159809
BaseRepresentation
bin100110101011000010…
…0011100101000010000
321221100210012002010121
41031112010130220100
52330040341310130
6102052451040024
76000005424355
oct1152604345020
9257323162117
1083048385040
1132247714965
12141188a0014
137aa685a64a
14403b97862c
152260e1dd7a
hex135611ca10

83048385040 has 80 divisors (see below), whose sum is σ = 204649245360. Its totient is φ = 31234129920.

The previous prime is 83048385031. The next prime is 83048385059. The reversal of 83048385040 is 4058384038.

It can be written as a sum of positive squares in 8 ways, for example, as 8086325776 + 74962059264 = 89924^2 + 273792^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1358656 + ... + 1418464.

It is an arithmetic number, because the mean of its divisors is an integer number (2558115567).

Almost surely, 283048385040 is an apocalyptic number.

83048385040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83048385040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102324622680).

83048385040 is an abundant number, since it is smaller than the sum of its proper divisors (121600860320).

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

83048385040 is a wasteful number, since it uses less digits than its factorization.

83048385040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60860 (or 60854 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 83048385040 in words is "eighty-three billion, forty-eight million, three hundred eighty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1021 1360 2042 4084 5105 8168 10210 16336 17357 20420 34714 40840 59809 69428 81680 86785 119618 138856 173570 239236 277712 299045 347140 478472 598090 694280 956944 1016753 1196180 1388560 2033506 2392360 4067012 4784720 5083765 8134024 10167530 16268048 20335060 40670120 61064989 81340240 122129978 244259956 305324945 488519912 610649890 977039824 1038104813 1221299780 2076209626 2442599560 4152419252 4885199120 5190524065 8304838504 10381048130 16609677008 20762096260 41524192520 83048385040