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69885133 is a prime number
BaseRepresentation
bin1000010101001…
…01110011001101
311212111112101021
410022211303031
5120342311013
610533514141
71506004513
oct412456315
9155445337
1069885133
11364a280a
121b4a2951
131162b466
1493d24b3
156206a8d
hex42a5ccd

69885133 has 2 divisors, whose sum is σ = 69885134. Its totient is φ = 69885132.

The previous prime is 69885131. The next prime is 69885139. The reversal of 69885133 is 33158896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36036009 + 33849124 = 6003^2 + 5818^2 .

It is a cyclic number.

It is not a de Polignac number, because 69885133 - 21 = 69885131 is a prime.

Together with 69885131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 69885133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69885131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34942566 + 34942567.

It is an arithmetic number, because the mean of its divisors is an integer number (34942567).

Almost surely, 269885133 is an apocalyptic number.

It is an amenable number.

69885133 is a deficient number, since it is larger than the sum of its proper divisors (1).

69885133 is an equidigital number, since it uses as much as digits as its factorization.

69885133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The square root of 69885133 is about 8359.7328306591. The cubic root of 69885133 is about 411.9029781438.

It can be divided in two parts, 6988 and 5133, that added together give a palindrome (12121).

The spelling of 69885133 in words is "sixty-nine million, eight hundred eighty-five thousand, one hundred thirty-three".