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2150231205 = 35191750517
BaseRepresentation
bin1000000000101001…
…1110110010100101
312112212001001200210
42000022132302211
513400424344310
6553210530033
7104166443433
oct20012366245
95485031623
102150231205
11a03827591
12500136919
13283627575
14165803d53
15c8b8a820
hex8029eca5

2150231205 has 16 divisors (see below), whose sum is σ = 3458386944. Its totient is φ = 1140784320.

The previous prime is 2150231203. The next prime is 2150231257. The reversal of 2150231205 is 5021320512.

It is not a de Polignac number, because 2150231205 - 21 = 2150231203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150231203) 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, 372394 + ... + 378123.

It is an arithmetic number, because the mean of its divisors is an integer number (216149184).

Almost surely, 22150231205 is an apocalyptic number.

It is an amenable number.

2150231205 is a deficient number, since it is larger than the sum of its proper divisors (1308155739).

2150231205 is a wasteful number, since it uses less digits than its factorization.

2150231205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750716.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2150231205 is about 46370.5855580884. The cubic root of 2150231205 is about 1290.7091437772.

Adding to 2150231205 its reverse (5021320512), we get a palindrome (7171551717).

The spelling of 2150231205 in words is "two billion, one hundred fifty million, two hundred thirty-one thousand, two hundred five".

Divisors: 1 3 5 15 191 573 955 2865 750517 2251551 3752585 11257755 143348747 430046241 716743735 2150231205