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16345849 = 1323112
BaseRepresentation
bin111110010110…
…101011111001
31010202110021211
4332112223321
513141031344
61342203121
7255636352
oct76265371
933673254
1016345849
119254973
1255834a1
133504100
142256d29
15167d334
hexf96af9

16345849 has 9 divisors (see below), whose sum is σ = 17757039. Its totient is φ = 15039960.

The previous prime is 16345843. The next prime is 16345853. The reversal of 16345849 is 94854361.

The square root of 16345849 is 4043.

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

It can be written as a sum of positive squares in only one way, i.e., 2418025 + 13927824 = 1555^2 + 3732^2 .

It is not a de Polignac number, because 16345849 - 23 = 16345841 is a prime.

It is a Duffinian number.

16345849 is a Rhonda number in base 4.

Its product of digits (103680) is a multiple of the sum of its prime divisors (324).

It is not an unprimeable number, because it can be changed into a prime (16345841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 52404 + ... + 52714.

Almost surely, 216345849 is an apocalyptic number.

16345849 is the 4043-rd square number.

16345849 is the 2022-nd centered octagonal number.

It is an amenable number.

16345849 is a deficient number, since it is larger than the sum of its proper divisors (1411190).

16345849 is an frugal number, since it uses more digits than its factorization.

16345849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 324 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The cubic root of 16345849 is about 253.7868766324.

The spelling of 16345849 in words is "sixteen million, three hundred forty-five thousand, eight hundred forty-nine".

Divisors: 1 13 169 311 4043 52559 96721 1257373 16345849