Search a number
-
+
69430484549 is a prime number
BaseRepresentation
bin100000010101001100…
…0010001111001000101
320122012201201001112202
41000222120101321011
52114143201001144
651521304124245
75005360244516
oct1005230217105
9218181631482
1069430484549
1127499775748
1211558166685
13671646346a
143509126a0d
151c1561564e
hex102a611e45

69430484549 has 2 divisors, whose sum is σ = 69430484550. Its totient is φ = 69430484548.

The previous prime is 69430484521. The next prime is 69430484593. The reversal of 69430484549 is 94548403496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69375872449 + 54612100 = 263393^2 + 7390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69430484549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69430484494 and 69430484503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69430484749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34715242274 + 34715242275.

It is an arithmetic number, because the mean of its divisors is an integer number (34715242275).

Almost surely, 269430484549 is an apocalyptic number.

It is an amenable number.

69430484549 is a deficient number, since it is larger than the sum of its proper divisors (1).

69430484549 is an equidigital number, since it uses as much as digits as its factorization.

69430484549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 69430484549 in words is "sixty-nine billion, four hundred thirty million, four hundred eighty-four thousand, five hundred forty-nine".