Search a number
-
+
230202304040 = 2355755057601
BaseRepresentation
bin1101011001100100100…
…0000110011000101000
3211000012012020200211202
43112121020012120220
512232423242212130
6253430430143332
722426425204362
oct3263110063050
9730165220752
10230202304040
11896a0221255
1238746351b48
13189285971b7
14b1db34bd32
155ec4c10145
hex3599206628

230202304040 has 16 divisors (see below), whose sum is σ = 517955184180. Its totient is φ = 92080921600.

The previous prime is 230202304039. The next prime is 230202304049. The reversal of 230202304040 is 40403202032.

It can be written as a sum of positive squares in 2 ways, for example, as 224708233156 + 5494070884 = 474034^2 + 74122^2 .

It is a super-3 number, since 3×2302023040403 (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (230202304049) 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, 2877528761 + ... + 2877528840.

Almost surely, 2230202304040 is an apocalyptic number.

230202304040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230202304040 is an abundant number, since it is smaller than the sum of its proper divisors (287752880140).

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

230202304040 is a wasteful number, since it uses less digits than its factorization.

230202304040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755057612 (or 5755057608 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 230202304040 its reverse (40403202032), we get a palindrome (270605506072).

The spelling of 230202304040 in words is "two hundred thirty billion, two hundred two million, three hundred four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 5755057601 11510115202 23020230404 28775288005 46040460808 57550576010 115101152020 230202304040