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82654528105 = 5172323749681
BaseRepresentation
bin100110011111010011…
…0000000001001101001
321220100100002001222201
41030332212000021221
52323234024344410
6101545421220201
75654153616412
oct1147646001151
9256310061881
1082654528105
1132065365366
1214028a01661
137a4308a1c6
144001532809
15223b57083a
hex133e980269

82654528105 has 48 divisors (see below), whose sum is σ = 112753895184. Its totient is φ = 57918136320.

The previous prime is 82654528081. The next prime is 82654528109. The reversal of 82654528105 is 50182545628.

It can be written as a sum of positive squares in 8 ways, for example, as 15488549209 + 67165978896 = 124453^2 + 259164^2 .

It is not a de Polignac number, because 82654528105 - 215 = 82654495337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82654528109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1638865 + ... + 1688545.

It is an arithmetic number, because the mean of its divisors is an integer number (2349039483).

Almost surely, 282654528105 is an apocalyptic number.

82654528105 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82654528105 is a deficient number, since it is larger than the sum of its proper divisors (30099367079).

82654528105 is a wasteful number, since it uses less digits than its factorization.

82654528105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49786 (or 49763 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 46.

The spelling of 82654528105 in words is "eighty-two billion, six hundred fifty-four million, five hundred twenty-eight thousand, one hundred five".

Divisors: 1 5 17 23 37 85 115 185 391 529 629 851 1955 2645 3145 4255 8993 14467 19573 44965 49681 72335 97865 248405 332741 844577 1142663 1663705 1838197 4222885 5713315 9190985 19425271 26281249 31249349 42278531 97126355 131406245 156246745 211392655 446781233 718735027 972406213 2233906165 3593675135 4862031065 16530905621 82654528105