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194769311 = 11314113931
BaseRepresentation
bin10111001101111…
…11000110011111
3111120111022021012
423212333012133
5344330104221
631154325435
74553340362
oct1346770637
9446438235
10194769311
119aa40080
125528987b
1331475519
141bc200d9
151217465b
hexb9bf19f

194769311 has 16 divisors (see below), whose sum is σ = 224695296. Its totient is φ = 167160000.

The previous prime is 194769301. The next prime is 194769343. The reversal of 194769311 is 113967491.

It is a cyclic number.

It is not a de Polignac number, because 194769311 - 214 = 194752927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194769301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7016 + ... + 20946.

It is an arithmetic number, because the mean of its divisors is an integer number (14043456).

Almost surely, 2194769311 is an apocalyptic number.

194769311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

194769311 is a deficient number, since it is larger than the sum of its proper divisors (29925985).

194769311 is a wasteful number, since it uses less digits than its factorization.

194769311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014.

The product of its digits is 40824, while the sum is 41.

The square root of 194769311 is about 13955.9776081792. The cubic root of 194769311 is about 579.6602360031.

The spelling of 194769311 in words is "one hundred ninety-four million, seven hundred sixty-nine thousand, three hundred eleven".

Divisors: 1 11 31 41 341 451 1271 13931 13981 153241 431861 571171 4750471 6282881 17706301 194769311