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199484279 = 3710949463
BaseRepresentation
bin10111110001111…
…10001101110111
3111220100211222122
423320332031313
5402031444104
631443350155
74641405551
oct1370761567
9456324878
10199484279
11a2670545
125698235b
1332436647
141c6ca4d1
15127a66be
hexbe3e377

199484279 has 8 divisors (see below), whose sum is σ = 206759520. Its totient is φ = 192308256.

The previous prime is 199484269. The next prime is 199484291. The reversal of 199484279 is 972484991.

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 199484279 - 28 = 199484023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199484279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199484269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20699 + ... + 28764.

It is an arithmetic number, because the mean of its divisors is an integer number (25844940).

Almost surely, 2199484279 is an apocalyptic number.

199484279 is a deficient number, since it is larger than the sum of its proper divisors (7275241).

199484279 is a wasteful number, since it uses less digits than its factorization.

199484279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49609.

The product of its digits is 1306368, while the sum is 53.

The square root of 199484279 is about 14123.8903634940. The cubic root of 199484279 is about 584.3004558521.

The spelling of 199484279 in words is "one hundred ninety-nine million, four hundred eighty-four thousand, two hundred seventy-nine".

Divisors: 1 37 109 4033 49463 1830131 5391467 199484279