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199102349 = 1913975389
BaseRepresentation
bin10111101111000…
…00111110001101
3111212122110002002
423313200332031
5401432233344
631431242045
74635225215
oct1367407615
9455573062
10199102349
11a242a5a6
1256819325
1332331854
141c62b245
151272d44e
hexbde0f8d

199102349 has 8 divisors (see below), whose sum is σ = 211092000. Its totient is φ = 187263792.

The previous prime is 199102333. The next prime is 199102361. The reversal of 199102349 is 943201991.

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 199102349 - 24 = 199102333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199102369) 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 7 ways as a sum of consecutive naturals, for example, 35054 + ... + 40335.

It is an arithmetic number, because the mean of its divisors is an integer number (26386500).

Almost surely, 2199102349 is an apocalyptic number.

199102349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

199102349 is a deficient number, since it is larger than the sum of its proper divisors (11989651).

199102349 is a wasteful number, since it uses less digits than its factorization.

199102349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75547.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 199102349 is about 14110.3631774664. The cubic root of 199102349 is about 583.9273196049.

The spelling of 199102349 in words is "one hundred ninety-nine million, one hundred two thousand, three hundred forty-nine".

Divisors: 1 19 139 2641 75389 1432391 10479071 199102349