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83312497 is a prime number
BaseRepresentation
bin1001111011100…
…11111101110001
312210202201021001
410331303331301
5132311444442
612133402001
72031100402
oct475637561
9183681231
1083312497
1143033a04
1223a99301
1314350048
14b0c99a9
1574aa2b7
hex4f73f71

83312497 has 2 divisors, whose sum is σ = 83312498. Its totient is φ = 83312496.

The previous prime is 83312443. The next prime is 83312501. The reversal of 83312497 is 79421338.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73427761 + 9884736 = 8569^2 + 3144^2 .

It is a cyclic number.

It is not a de Polignac number, because 83312497 - 211 = 83310449 is a prime.

It is not a weakly prime, because it can be changed into another prime (83315497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41656248 + 41656249.

It is an arithmetic number, because the mean of its divisors is an integer number (41656249).

Almost surely, 283312497 is an apocalyptic number.

It is an amenable number.

83312497 is a deficient number, since it is larger than the sum of its proper divisors (1).

83312497 is an equidigital number, since it uses as much as digits as its factorization.

83312497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 83312497 is about 9127.5679674270. The cubic root of 83312497 is about 436.7538249061.

The spelling of 83312497 in words is "eighty-three million, three hundred twelve thousand, four hundred ninety-seven".