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83244197869 = 728320468207
BaseRepresentation
bin100110110000110111…
…1011010011111101101
321221212102122101211121
41031201233122133231
52330441003312434
6102124124020541
76004604002300
oct1154157323755
9257772571747
1083244197869
11323381a7a48
1214172391751
137b082a9b21
14405998ab37
1522731ec7b4
hex1361bda7ed

83244197869 has 12 divisors (see below), whose sum is σ = 98001779904. Its totient is φ = 70492501464.

The previous prime is 83244197867. The next prime is 83244197899. The reversal of 83244197869 is 96879144238.

It is not a de Polignac number, because 83244197869 - 21 = 83244197867 is a prime.

It is a super-2 number, since 2×832441978692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83244197863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10230037 + ... + 10238170.

It is an arithmetic number, because the mean of its divisors is an integer number (8166814992).

Almost surely, 283244197869 is an apocalyptic number.

It is an amenable number.

83244197869 is a deficient number, since it is larger than the sum of its proper divisors (14757582035).

83244197869 is a wasteful number, since it uses less digits than its factorization.

83244197869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20468304 (or 20468297 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 61.

The spelling of 83244197869 in words is "eighty-three billion, two hundred forty-four million, one hundred ninety-seven thousand, eight hundred sixty-nine".

Divisors: 1 7 49 83 581 4067 20468207 143277449 1002942143 1698861181 11892028267 83244197869