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83120371 is a prime number
BaseRepresentation
bin1001111010001…
…01000011110011
312210101221201021
410331011003303
5132234322441
612125320311
72026340305
oct475050363
9183357637
1083120371
1142a12624
1223a06097
13142b3769
14b079975
15746d3d1
hex4f450f3

83120371 has 2 divisors, whose sum is σ = 83120372. Its totient is φ = 83120370.

The previous prime is 83120311. The next prime is 83120423. The reversal of 83120371 is 17302138.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83120371 - 215 = 83087603 is a prime.

It is not a weakly prime, because it can be changed into another prime (83120311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41560185 + 41560186.

It is an arithmetic number, because the mean of its divisors is an integer number (41560186).

Almost surely, 283120371 is an apocalyptic number.

83120371 is a deficient number, since it is larger than the sum of its proper divisors (1).

83120371 is an equidigital number, since it uses as much as digits as its factorization.

83120371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 83120371 is about 9117.0374025777. The cubic root of 83120371 is about 436.4178354935.

The spelling of 83120371 in words is "eighty-three million, one hundred twenty thousand, three hundred seventy-one".