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194308349 = 3712741351
BaseRepresentation
bin10111001010011…
…10100011111101
3111112121212221112
423211032203331
5344220331344
631140411405
74546410434
oct1345164375
9445555845
10194308349
119a755814
12550a6b65
1331343771
141bb4011b
15120d2c9e
hexb94e8fd

194308349 has 8 divisors (see below), whose sum is σ = 201136128. Its totient is φ = 187563600.

The previous prime is 194308337. The next prime is 194308399. The reversal of 194308349 is 943803491.

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 194308349 - 216 = 194242813 is a prime.

It is a super-2 number, since 2×1943083492 = 75511468982211602, 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 (194308399) 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, 15977 + ... + 25374.

It is an arithmetic number, because the mean of its divisors is an integer number (25142016).

Almost surely, 2194308349 is an apocalyptic number.

It is an amenable number.

194308349 is a deficient number, since it is larger than the sum of its proper divisors (6827779).

194308349 is a wasteful number, since it uses less digits than its factorization.

194308349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41515.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 194308349 is about 13939.4529663111. The cubic root of 194308349 is about 579.2025793464.

The spelling of 194308349 in words is "one hundred ninety-four million, three hundred eight thousand, three hundred forty-nine".

Divisors: 1 37 127 4699 41351 1529987 5251577 194308349