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83005988763 = 318129192
BaseRepresentation
bin100110101001110001…
…0101101111110011011
321221020211102010101010
41031103202231332123
52324444013120023
6102044334225003
75665652156145
oct1152342557633
9257224363333
1083005988763
1132225797a15
1214106655163
137a9ab351a9
14403609dc95
15225c347093
hex13538adf9b

83005988763 has 18 divisors (see below), whose sum is σ = 111410722332. Its totient is φ = 54971712720.

The previous prime is 83005988761. The next prime is 83005988789. The reversal of 83005988763 is 36788950038.

It is not a de Polignac number, because 83005988763 - 21 = 83005988761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83005988761) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 90321618 + ... + 90322536.

It is an arithmetic number, because the mean of its divisors is an integer number (6189484574).

Almost surely, 283005988763 is an apocalyptic number.

83005988763 is a deficient number, since it is larger than the sum of its proper divisors (28404733569).

83005988763 is an frugal number, since it uses more digits than its factorization.

83005988763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 83005988763 in words is "eighty-three billion, five million, nine hundred eighty-eight thousand, seven hundred sixty-three".

Divisors: 1 3 181 543 919 2757 32761 98283 166339 499017 844561 2533683 30107359 90322077 152865541 458596623 27668662921 83005988763