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82807000381 = 715187789329
BaseRepresentation
bin100110100011110101…
…1101000110100111101
321220201221222110122001
41031013223220310331
52324042043003011
6102012505222301
75661014614120
oct1150753506475
9256657873561
1082807000381
1132133436006
121406ba91991
137a688434a1
1440178a23b7
152249b3c7c1
hex1347ae8d3d

82807000381 has 16 divisors (see below), whose sum is σ = 95372995840. Its totient is φ = 70426195200.

The previous prime is 82807000373. The next prime is 82807000387. The reversal of 82807000381 is 18300070828.

It is a cyclic number.

It is not a de Polignac number, because 82807000381 - 23 = 82807000373 is a prime.

It is a super-2 number, since 2×828070003812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82807000381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82807000387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882325 + ... + 971653.

It is an arithmetic number, because the mean of its divisors is an integer number (5960812240).

Almost surely, 282807000381 is an apocalyptic number.

82807000381 is the 166140-th hex number.

It is an amenable number.

82807000381 is a deficient number, since it is larger than the sum of its proper divisors (12565995459).

82807000381 is a wasteful number, since it uses less digits than its factorization.

82807000381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90364.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 82807000381 in words is "eighty-two billion, eight hundred seven million, three hundred eighty-one", and thus it is an aban number.

Divisors: 1 7 151 877 1057 6139 89329 132427 625303 926989 13488679 78341533 94420753 548390731 11829571483 82807000381