[go: up one dir, main page]

Search a number
-
+
2015430330 = 235371815703
BaseRepresentation
bin111100000100001…
…0000011010111010
312012110101110122210
41320020100122322
513111422232310
6531553355550
7100641606114
oct17010203272
95173343583
102015430330
11944726701
12482b68bb6
1326171a834
141519543b4
15bbe0e820
hex782106ba

2015430330 has 32 divisors (see below), whose sum is σ = 4967766144. Its totient is φ = 522922176.

The previous prime is 2015430259. The next prime is 2015430331. The reversal of 2015430330 is 330345102.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2015430297 and 2015430306.

It is not an unprimeable number, because it can be changed into a prime (2015430331) 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, 906742 + ... + 908961.

It is an arithmetic number, because the mean of its divisors is an integer number (155242692).

Almost surely, 22015430330 is an apocalyptic number.

2015430330 is an abundant number, since it is smaller than the sum of its proper divisors (2952335814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015430330 is a wasteful number, since it uses less digits than its factorization.

2015430330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815750.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 2015430330 is about 44893.5444134232. The cubic root of 2015430330 is about 1263.1529188848.

Adding to 2015430330 its reverse (330345102), we get a palindrome (2345775432).

The spelling of 2015430330 in words is "two billion, fifteen million, four hundred thirty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 1815703 3631406 5447109 9078515 10894218 18157030 27235545 54471090 67181011 134362022 201543033 335905055 403086066 671810110 1007715165 2015430330