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82394832025 = 521121723072
BaseRepresentation
bin100110010111100011…
…1010101110010011001
321212200020102010221101
41030233013111302121
52322221034111100
6101503543111401
75644551342112
oct1145707256231
9255606363841
1082394832025
1131a41809900
1213b75a42561
137a0133139c
143db8c51209
15222387386a
hex132f1d5c99

82394832025 has 81 divisors (see below), whose sum is σ = 119686562877. Its totient is φ = 56214892800.

The previous prime is 82394832007. The next prime is 82394832067. The reversal of 82394832025 is 52023849328.

It is a happy number.

The square root of 82394832025 is 287045.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1927297801 + 80467534224 = 43901^2 + 283668^2 .

It is not a de Polignac number, because 82394832025 - 211 = 82394829977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 268386922 + ... + 268387228.

Almost surely, 282394832025 is an apocalyptic number.

82394832025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

82394832025 is the 287045-th square number.

82394832025 is the 143523-rd centered octagonal number.

It is an amenable number.

82394832025 is a deficient number, since it is larger than the sum of its proper divisors (37291730852).

82394832025 is a wasteful number, since it uses less digits than its factorization.

82394832025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

It can be divided in two parts, 82394 and 832025, that added together give a palindrome (914419).

The spelling of 82394832025 in words is "eighty-two billion, three hundred ninety-four million, eight hundred thirty-two thousand, twenty-five".

Divisors: 1 5 11 17 25 55 85 121 187 275 289 307 425 605 935 1445 1535 2057 3025 3179 3377 4675 5219 7225 7675 10285 15895 16885 26095 34969 37147 51425 57409 79475 84425 88723 94249 130475 174845 185735 287045 443615 471245 631499 874225 928675 975953 1036739 1435225 1602233 2218075 2356225 3157495 4879765 5183695 8011165 10735483 11404129 15787475 17624563 24398825 25918475 27237961 40055825 53677415 57020645 88122815 136189805 193870193 268387075 285103225 299617571 440614075 680949025 969350965 1498087855 3295793281 4846754825 7490439275 16478966405 82394832025