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194497433 = 1319787439
BaseRepresentation
bin10111001011111…
…00101110011001
3111112222111022122
423211330232121
5344242404213
631144431025
74551125624
oct1345745631
9445874278
10194497433
119a874889
1255178475
13313ab850
141bb8cdbb
151211dd08
hexb97cb99

194497433 has 8 divisors (see below), whose sum is σ = 220483200. Its totient is φ = 170086608.

The previous prime is 194497427. The next prime is 194497451. The reversal of 194497433 is 334794491.

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 194497433 - 212 = 194493337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194497133) 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, 393473 + ... + 393966.

It is an arithmetic number, because the mean of its divisors is an integer number (27560400).

Almost surely, 2194497433 is an apocalyptic number.

194497433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

194497433 is a deficient number, since it is larger than the sum of its proper divisors (25985767).

194497433 is a wasteful number, since it uses less digits than its factorization.

194497433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787471.

The product of its digits is 326592, while the sum is 44.

The square root of 194497433 is about 13946.2336492689. The cubic root of 194497433 is about 579.3903949769.

The spelling of 194497433 in words is "one hundred ninety-four million, four hundred ninety-seven thousand, four hundred thirty-three".

Divisors: 1 13 19 247 787439 10236707 14961341 194497433