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83125481 is a prime number
BaseRepresentation
bin1001111010001…
…10010011101001
312210102012201112
410331012103221
5132240003411
612125400105
72026361225
oct475062351
9183365645
1083125481
1142a1644a
1223a09035
13142b5b9a
14b07b785
15746eb8b
hex4f464e9

83125481 has 2 divisors, whose sum is σ = 83125482. Its totient is φ = 83125480.

The previous prime is 83125463. The next prime is 83125487. The reversal of 83125481 is 18452138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83101456 + 24025 = 9116^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 83125481 - 26 = 83125417 is a prime.

It is a super-2 number, since 2×831254812 = 13819691182962722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83125487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41562740 + 41562741.

It is an arithmetic number, because the mean of its divisors is an integer number (41562741).

Almost surely, 283125481 is an apocalyptic number.

It is an amenable number.

83125481 is a deficient number, since it is larger than the sum of its proper divisors (1).

83125481 is an equidigital number, since it uses as much as digits as its factorization.

83125481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 32.

The square root of 83125481 is about 9117.3176428158. The cubic root of 83125481 is about 436.4267785457.

The spelling of 83125481 in words is "eighty-three million, one hundred twenty-five thousand, four hundred eighty-one".