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16305502249 = 14928572
BaseRepresentation
bin11110010111110001…
…00011100000101001
31120002100200100002201
433023320203200221
5231343202032444
611253551300201
71115031324301
oct171370434051
946070610081
1016305502249
116a080381a3
1231b081a661
1316cb15c5aa
14b09778601
1565673edd4
hex3cbe23829

16305502249 has 9 divisors (see below), whose sum is σ = 16434846757. Its totient is φ = 16177170784.

The previous prime is 16305502243. The next prime is 16305502267. The reversal of 16305502249 is 94220550361.

The square root of 16305502249 is 127693.

It is a perfect power (a square), and thus also a powerful number.

16305502249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 92064025 + 16213438224 = 9595^2 + 127332^2 .

It is not a de Polignac number, because 16305502249 - 231 = 14158018601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16305502243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19025829 + ... + 19026685.

Almost surely, 216305502249 is an apocalyptic number.

16305502249 is the 127693-rd square number.

16305502249 is the 63847-th centered octagonal number.

It is an amenable number.

16305502249 is a deficient number, since it is larger than the sum of its proper divisors (129344508).

16305502249 is an frugal number, since it uses more digits than its factorization.

16305502249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 16305502249 in words is "sixteen billion, three hundred five million, five hundred two thousand, two hundred forty-nine".

Divisors: 1 149 857 22201 127693 734449 19026257 109432901 16305502249