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194314919 = 1914237187
BaseRepresentation
bin10111001010100…
…00001010100111
3111112122012221212
423211100022213
5344221034134
631140502035
74546435541
oct1345201247
9445565855
10194314919
119a75a747
12550aa91b
1331346756
141bb42691
15120d4bce
hexb9502a7

194314919 has 8 divisors (see below), whose sum is σ = 204714240. Its totient is φ = 183932856.

The previous prime is 194314871. The next prime is 194314927. The reversal of 194314919 is 919413491.

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 194314919 - 216 = 194249383 is a prime.

It is a super-2 number, since 2×1943149192 = 75516575491953122, 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 (194314969) 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, 23444 + ... + 30630.

It is an arithmetic number, because the mean of its divisors is an integer number (25589280).

Almost surely, 2194314919 is an apocalyptic number.

194314919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

194314919 is a deficient number, since it is larger than the sum of its proper divisors (10399321).

194314919 is a wasteful number, since it uses less digits than its factorization.

194314919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8629.

The product of its digits is 34992, while the sum is 41.

The square root of 194314919 is about 13939.6886263647. The cubic root of 194314919 is about 579.2091073178.

The spelling of 194314919 in words is "one hundred ninety-four million, three hundred fourteen thousand, nine hundred nineteen".

Divisors: 1 19 1423 7187 27037 136553 10227101 194314919