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83048391 = 3282911131
BaseRepresentation
bin1001111001100…
…11011111000111
312210021021222100
410330303133013
5132230022031
612124003143
72025620406
oct474633707
9183237870
1083048391
1142973538
12239904b3
1314289a7a
14b05b63d
157456de6
hex4f337c7

83048391 has 12 divisors (see below), whose sum is σ = 120114280. Its totient is φ = 55293840.

The previous prime is 83048353. The next prime is 83048401. The reversal of 83048391 is 19384038.

It is not a de Polignac number, because 83048391 - 26 = 83048327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83048321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1896 + ... + 13026.

Almost surely, 283048391 is an apocalyptic number.

83048391 is a deficient number, since it is larger than the sum of its proper divisors (37065889).

83048391 is a wasteful number, since it uses less digits than its factorization.

83048391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966 (or 11963 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 83048391 is about 9113.0889933107. The cubic root of 83048391 is about 436.2918237530.

The spelling of 83048391 in words is "eighty-three million, forty-eight thousand, three hundred ninety-one".

Divisors: 1 3 9 829 2487 7461 11131 33393 100179 9227599 27682797 83048391