Search a number
-
+
194401255 = 5197612689
BaseRepresentation
bin10111001011001…
…01001111100111
3111112210121101111
423211211033213
5344231320010
631142405451
74550245336
oct1345451747
9445717344
10194401255
119a8095a4
1255130887
1331376b39
141bb65d1d
151210058a
hexb9653e7

194401255 has 16 divisors (see below), whose sum is σ = 245973600. Its totient is φ = 147087360.

The previous prime is 194401243. The next prime is 194401261. The reversal of 194401255 is 552104491.

It is not a de Polignac number, because 194401255 - 27 = 194401127 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 70951 + ... + 73639.

It is an arithmetic number, because the mean of its divisors is an integer number (15373350).

Almost surely, 2194401255 is an apocalyptic number.

194401255 is a deficient number, since it is larger than the sum of its proper divisors (51572345).

194401255 is a wasteful number, since it uses less digits than its factorization.

194401255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 194401255 is about 13942.7850517750. The cubic root of 194401255 is about 579.2948773545.

The spelling of 194401255 in words is "one hundred ninety-four million, four hundred one thousand, two hundred fifty-five".

Divisors: 1 5 19 95 761 2689 3805 13445 14459 51091 72295 255455 2046329 10231645 38880251 194401255