Search a number
-
+
2302231240 = 23557555781
BaseRepresentation
bin1000100100111001…
…0100001011001000
312221110001110112201
42021032110023020
514203332344430
61020240445544
7111023433301
oct21116241310
95843043481
102302231240
11a81605451
125430198b4
132a8c7690a
1417ba8d7a8
15d71b28ca
hex893942c8

2302231240 has 16 divisors (see below), whose sum is σ = 5180020380. Its totient is φ = 920892480.

The previous prime is 2302231237. The next prime is 2302231247. The reversal of 2302231240 is 421322032.

It can be written as a sum of positive squares in 2 ways, for example, as 1843671844 + 458559396 = 42938^2 + 21414^2 .

It is not an unprimeable number, because it can be changed into a prime (2302231247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28777851 + ... + 28777930.

Almost surely, 22302231240 is an apocalyptic number.

2302231240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2302231240 is an abundant number, since it is smaller than the sum of its proper divisors (2877789140).

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

2302231240 is a wasteful number, since it uses less digits than its factorization.

2302231240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57555792 (or 57555788 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2302231240 is about 47981.5718792121. The cubic root of 2302231240 is about 1320.4328317339.

Adding to 2302231240 its reverse (421322032), we get a palindrome (2723553272).

The spelling of 2302231240 in words is "two billion, three hundred two million, two hundred thirty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 57555781 115111562 230223124 287778905 460446248 575557810 1151115620 2302231240