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194419 = 2379107
BaseRepresentation
bin101111011101110011
3100212200201
4233131303
522210134
64100031
71436551
oct573563
9325621
10194419
11123085
1294617
136a654
1450bd1
153c914
hex2f773

194419 has 8 divisors (see below), whose sum is σ = 207360. Its totient is φ = 181896.

The previous prime is 194413. The next prime is 194431. The reversal of 194419 is 914491.

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 194419 - 213 = 186227 is a prime.

It is a super-2 number, since 2×1944192 = 75597495122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194413) 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, 1764 + ... + 1870.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2194419 is an apocalyptic number.

194419 is a deficient number, since it is larger than the sum of its proper divisors (12941).

194419 is a wasteful number, since it uses less digits than its factorization.

194419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

The product of its digits is 1296, while the sum is 28.

The square root of 194419 is about 440.9296996121. The cubic root of 194419 is about 57.9312502883.

The spelling of 194419 in words is "one hundred ninety-four thousand, four hundred nineteen".

Divisors: 1 23 79 107 1817 2461 8453 194419