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205010135 = 51129791627
BaseRepresentation
bin11000011100000…
…11010011010111
3112021202121000222
430032003103113
5404440311020
632202024555
75036362121
oct1416032327
9467677028
10205010135
11a57a5170
12587a815b
133361c895
141d328211
1512ee8b25
hexc3834d7

205010135 has 32 divisors (see below), whose sum is σ = 281318400. Its totient is φ = 142047360.

The previous prime is 205010101. The next prime is 205010147. The reversal of 205010135 is 531010502.

205010135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205010135 - 222 = 200815831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125192 + ... + 126818.

It is an arithmetic number, because the mean of its divisors is an integer number (8791200).

Almost surely, 2205010135 is an apocalyptic number.

205010135 is a deficient number, since it is larger than the sum of its proper divisors (76308265).

205010135 is a wasteful number, since it uses less digits than its factorization.

205010135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 205010135 is about 14318.1749884544. The cubic root of 205010135 is about 589.6465708605.

Adding to 205010135 its reverse (531010502), we get a palindrome (736020637).

The spelling of 205010135 in words is "two hundred five million, ten thousand, one hundred thirty-five".

Divisors: 1 5 11 29 55 79 145 319 395 869 1595 1627 2291 4345 8135 11455 17897 25201 47183 89485 126005 128533 235915 519013 642665 1413863 2595065 3727457 7069315 18637285 41002027 205010135