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68587471 is a prime number
BaseRepresentation
bin1000001011010…
…00111111001111
311210001121022201
410011220333033
5120024244341
610450022331
71461661321
oct405507717
9153047281
1068587471
1135796867
121ab779a7
1311295904
149175611
15604c331
hex4168fcf

68587471 has 2 divisors, whose sum is σ = 68587472. Its totient is φ = 68587470.

The previous prime is 68587447. The next prime is 68587489. The reversal of 68587471 is 17478586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68587471 - 213 = 68579279 is a prime.

It is a super-3 number, since 3×685874713 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68087471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34293735 + 34293736.

It is an arithmetic number, because the mean of its divisors is an integer number (34293736).

Almost surely, 268587471 is an apocalyptic number.

68587471 is a deficient number, since it is larger than the sum of its proper divisors (1).

68587471 is an equidigital number, since it uses as much as digits as its factorization.

68587471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 46.

The square root of 68587471 is about 8281.7553091117. The cubic root of 68587471 is about 409.3375600513.

The spelling of 68587471 in words is "sixty-eight million, five hundred eighty-seven thousand, four hundred seventy-one".