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194956853 = 71319112757
BaseRepresentation
bin10111001111011…
…00111000110101
3111120211211112012
423213230320311
5344402104403
631202334005
74555051220
oct1347547065
9446754465
10194956853
11a0058a73
125535a305
133150c9b0
141bc6c5b7
15121aeed8
hexb9ece35

194956853 has 16 divisors (see below), whose sum is σ = 252577920. Its totient is φ = 146131776.

The previous prime is 194956823. The next prime is 194956873. The reversal of 194956853 is 358659491.

It is a happy number.

It is not a de Polignac number, because 194956853 - 26 = 194956789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194956823) 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 15 ways as a sum of consecutive naturals, for example, 54650 + ... + 58107.

It is an arithmetic number, because the mean of its divisors is an integer number (15786120).

Almost surely, 2194956853 is an apocalyptic number.

194956853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

194956853 is a deficient number, since it is larger than the sum of its proper divisors (57621067).

194956853 is a wasteful number, since it uses less digits than its factorization.

194956853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112796.

The product of its digits is 1166400, while the sum is 50.

The square root of 194956853 is about 13962.6950478767. The cubic root of 194956853 is about 579.8462265746.

The spelling of 194956853 in words is "one hundred ninety-four million, nine hundred fifty-six thousand, eight hundred fifty-three".

Divisors: 1 7 13 19 91 133 247 1729 112757 789299 1465841 2142383 10260887 14996681 27850979 194956853