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205114135 = 5316719751
BaseRepresentation
bin11000011100111…
…00101100010111
3112021221212200211
430032130230113
5410002123020
632204150251
75040304252
oct1416345427
9467855624
10205114135
11a5866316
1258838387
1333658015
141d354099
151301985a
hexc39cb17

205114135 has 16 divisors (see below), whose sum is σ = 257882112. Its totient is φ = 156420000.

The previous prime is 205114127. The next prime is 205114153. The reversal of 205114135 is 531411502.

It is a happy number.

It is not a de Polignac number, because 205114135 - 23 = 205114127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510 + ... + 20260.

It is an arithmetic number, because the mean of its divisors is an integer number (16117632).

Almost surely, 2205114135 is an apocalyptic number.

205114135 is a deficient number, since it is larger than the sum of its proper divisors (52767977).

205114135 is a wasteful number, since it uses less digits than its factorization.

205114135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19854.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 205114135 is about 14321.8062757461. The cubic root of 205114135 is about 589.7462616664.

Adding to 205114135 its reverse (531411502), we get a palindrome (736525637).

The spelling of 205114135 in words is "two hundred five million, one hundred fourteen thousand, one hundred thirty-five".

Divisors: 1 5 31 67 155 335 2077 10385 19751 98755 612281 1323317 3061405 6616585 41022827 205114135