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82311104144 = 24192922940771
BaseRepresentation
bin100110010101000011…
…1111100011010010000
321212110101212022212202
41030222013330122100
52322033120313034
6101451352342332
75642513561363
oct1145207743220
9255411768782
1082311104144
11319a9521905
1213b519a49a8
1379b9b97269
143daba980da
15221b33547e
hex132a1fc690

82311104144 has 80 divisors (see below), whose sum is σ = 174422616000. Its totient is φ = 37479697920.

The previous prime is 82311104129. The next prime is 82311104149. The reversal of 82311104144 is 44140111328.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (82311104149) 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 15 ways as a sum of consecutive naturals, for example, 1998479 + ... + 2039249.

It is an arithmetic number, because the mean of its divisors is an integer number (2180282700).

Almost surely, 282311104144 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 82311104144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87211308000).

82311104144 is an abundant number, since it is smaller than the sum of its proper divisors (92111511856).

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

82311104144 is a wasteful number, since it uses less digits than its factorization.

82311104144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41056 (or 41050 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 82311104144 in words is "eighty-two billion, three hundred eleven million, one hundred four thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 19 29 38 58 76 116 152 229 232 304 458 464 551 916 1102 1832 2204 3664 4351 4408 6641 8702 8816 13282 17404 26564 34808 40771 53128 69616 81542 106256 126179 163084 252358 326168 504716 652336 774649 1009432 1182359 1549298 2018864 2364718 3098596 4729436 6197192 9336559 9458872 12394384 18673118 18917744 22464821 37346236 44929642 74692472 89859284 149384944 177394621 179718568 270760211 354789242 359437136 541520422 709578484 1083040844 1419156968 2166081688 2838313936 4332163376 5144444009 10288888018 20577776036 41155552072 82311104144