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16697033089 = 1121726912
BaseRepresentation
bin11111000110011100…
…01000000110000001
31121002122102011102221
433203032020012001
5233143420024324
611400455211041
71130524303522
oct174316100601
947078364387
1016697033089
117099049100
12329b976a81
1317612c7049
14b45776849
1567acce0e4
hex3e3388181

16697033089 has 27 divisors (see below), whose sum is σ = 19524281763. Its totient is φ = 14265556800.

The previous prime is 16697033077. The next prime is 16697033107. The reversal of 16697033089 is 98033079661.

The square root of 16697033089 is 129217.

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., 12999420225 + 3697612864 = 114015^2 + 60808^2 .

It is not a de Polignac number, because 16697033089 - 211 = 16697031041 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16697033029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24163234 + ... + 24163924.

Almost surely, 216697033089 is an apocalyptic number.

16697033089 is the 129217-th square number.

16697033089 is the 64609-th centered octagonal number.

It is an amenable number.

16697033089 is a deficient number, since it is larger than the sum of its proper divisors (2827248674).

16697033089 is an frugal number, since it uses more digits than its factorization.

16697033089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 16697033089 in words is "sixteen billion, six hundred ninety-seven million, thirty-three thousand, eighty-nine".

Divisors: 1 11 17 121 187 289 691 2057 3179 7601 11747 34969 83611 129217 199699 477481 1421387 2196689 5252291 8117177 24163579 57775201 89288947 137992009 982178417 1517912099 16697033089