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194296385 = 561762981
BaseRepresentation
bin10111001010010…
…11101001000001
3111112121021112102
423211023221001
5344214441020
631140240145
74546330523
oct1345135101
9445537472
10194296385
119a747828
12550a0055
133133b19a
141bb39a13
15120ce475
hexb94ba41

194296385 has 8 divisors (see below), whose sum is σ = 233537256. Its totient is φ = 155182720.

The previous prime is 194296379. The next prime is 194296391. The reversal of 194296385 is 583692491.

It is an interprime number because it is at equal distance from previous prime (194296379) and next prime (194296391).

It can be written as a sum of positive squares in 4 ways, for example, as 2999824 + 191296561 = 1732^2 + 13831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 194296385 - 26 = 194296321 is a prime.

It is a super-3 number, since 3×1942963853 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 28406 + ... + 34575.

It is an arithmetic number, because the mean of its divisors is an integer number (29192157).

Almost surely, 2194296385 is an apocalyptic number.

It is an amenable number.

194296385 is a deficient number, since it is larger than the sum of its proper divisors (39240871).

194296385 is an equidigital number, since it uses as much as digits as its factorization.

194296385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63603.

The product of its digits is 466560, while the sum is 47.

The square root of 194296385 is about 13939.0238180441. The cubic root of 194296385 is about 579.1906915026.

The spelling of 194296385 in words is "one hundred ninety-four million, two hundred ninety-six thousand, three hundred eighty-five".

Divisors: 1 5 617 3085 62981 314905 38859277 194296385