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69313897 is a prime number
BaseRepresentation
bin1000010000110…
…10010101101001
311211102111210101
410020122111221
5120221021042
610513345401
71501105222
oct410322551
9154374711
1069313897
1136142614
121b268261
131148b453
1492c4249
1561426b7
hex421a569

69313897 has 2 divisors, whose sum is σ = 69313898. Its totient is φ = 69313896.

The previous prime is 69313841. The next prime is 69313921. The reversal of 69313897 is 79831396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67420521 + 1893376 = 8211^2 + 1376^2 .

It is a cyclic number.

It is not a de Polignac number, because 69313897 - 211 = 69311849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69313817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34656948 + 34656949.

It is an arithmetic number, because the mean of its divisors is an integer number (34656949).

Almost surely, 269313897 is an apocalyptic number.

It is an amenable number.

69313897 is a deficient number, since it is larger than the sum of its proper divisors (1).

69313897 is an equidigital number, since it uses as much as digits as its factorization.

69313897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 46.

The square root of 69313897 is about 8325.4968019933. The cubic root of 69313897 is about 410.7776180079. Note that the first 3 decimals are identical.

It can be divided in two parts, 6931389 and 7, that added together give a palindrome (6931396).

The spelling of 69313897 in words is "sixty-nine million, three hundred thirteen thousand, eight hundred ninety-seven".