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69999469 is a prime number
BaseRepresentation
bin1000010110000…
…01101101101101
311212201100012221
410023001231231
5120404440334
610540155341
71506662041
oct413015555
9155640187
1069999469
1136570701
121b538b51
131166b507
149422021
15622a8b4
hex42c1b6d

69999469 has 2 divisors, whose sum is σ = 69999470. Its totient is φ = 69999468.

The previous prime is 69999463. The next prime is 69999487. The reversal of 69999469 is 96499996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69973225 + 26244 = 8365^2 + 162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69999469 is a prime.

It is a super-2 number, since 2×699994692 = 9799851320563922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69999463) 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, 34999734 + 34999735.

It is an arithmetic number, because the mean of its divisors is an integer number (34999735).

Almost surely, 269999469 is an apocalyptic number.

It is an amenable number.

69999469 is a deficient number, since it is larger than the sum of its proper divisors (1).

69999469 is an equidigital number, since it uses as much as digits as its factorization.

69999469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8503056, while the sum is 61.

The square root of 69999469 is about 8366.5685319610. The cubic root of 69999469 is about 412.1274878818.

The spelling of 69999469 in words is "sixty-nine million, nine hundred ninety-nine thousand, four hundred sixty-nine".