Search a number
-
+
2205205385 = 52329661231
BaseRepresentation
bin1000001101110000…
…1100001110001001
312200200111001002112
42003130030032021
514004013033020
61002453112105
7105434636135
oct20334141611
95620431075
102205205385
11a31865499
12516628635
13291b34a76
1416cc343c5
15cd8e92c5
hex8370c389

2205205385 has 16 divisors (see below), whose sum is σ = 2856522240. Its totient is φ = 1629270720.

The previous prime is 2205205381. The next prime is 2205205391. The reversal of 2205205385 is 5835025022.

It is not a de Polignac number, because 2205205385 - 22 = 2205205381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205205381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327281 + ... + 333950.

It is an arithmetic number, because the mean of its divisors is an integer number (178532640).

Almost surely, 22205205385 is an apocalyptic number.

It is an amenable number.

2205205385 is a deficient number, since it is larger than the sum of its proper divisors (651316855).

2205205385 is a wasteful number, since it uses less digits than its factorization.

2205205385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661288.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2205205385 is about 46959.6144042942. The cubic root of 2205205385 is about 1301.6164084712.

The spelling of 2205205385 in words is "two billion, two hundred five million, two hundred five thousand, three hundred eighty-five".

Divisors: 1 5 23 29 115 145 667 3335 661231 3306155 15208313 19175699 76041565 95878495 441041077 2205205385