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199115269 = 1916762753
BaseRepresentation
bin10111101111001…
…00001000000101
3111212200002210121
423313210020011
5401433142034
631431421541
74635310663
oct1367441005
9455602717
10199115269
11a2439281
12568248b1
13323376b2
141c631c33
15127321b4
hexbde4205

199115269 has 8 divisors (see below), whose sum is σ = 210853440. Its totient is φ = 187502976.

The previous prime is 199115261. The next prime is 199115297. The reversal of 199115269 is 962511991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 199115269 - 23 = 199115261 is a prime.

It is a super-2 number, since 2×1991152692 = 79293780697884722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199115261) 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 in 7 ways as a sum of consecutive naturals, for example, 28204 + ... + 34549.

It is an arithmetic number, because the mean of its divisors is an integer number (26356680).

Almost surely, 2199115269 is an apocalyptic number.

199115269 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

199115269 is a deficient number, since it is larger than the sum of its proper divisors (11738171).

199115269 is a wasteful number, since it uses less digits than its factorization.

199115269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62939.

The product of its digits is 43740, while the sum is 43.

The square root of 199115269 is about 14110.8209895810. The cubic root of 199115269 is about 583.9399499227.

The spelling of 199115269 in words is "one hundred ninety-nine million, one hundred fifteen thousand, two hundred sixty-nine".

Divisors: 1 19 167 3173 62753 1192307 10479751 199115269