Search a number
-
+
1230333320 = 23530758333
BaseRepresentation
bin100100101010101…
…0110010110001000
310011202002102000202
41021111112112020
510004431131240
6322030151332
742326442416
oct11125262610
93152072022
101230333320
115815446a7
122a4052548
13167b850a8
14b95882b6
157302d315
hex49556588

1230333320 has 16 divisors (see below), whose sum is σ = 2768250060. Its totient is φ = 492133312.

The previous prime is 1230333317. The next prime is 1230333343. The reversal of 1230333320 is 233330321.

It can be written as a sum of positive squares in 2 ways, for example, as 1229624356 + 708964 = 35066^2 + 842^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1230333292 and 1230333301.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15379127 + ... + 15379206.

Almost surely, 21230333320 is an apocalyptic number.

1230333320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230333320 is an abundant number, since it is smaller than the sum of its proper divisors (1537916740).

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

1230333320 is a wasteful number, since it uses less digits than its factorization.

1230333320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30758344 (or 30758340 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 1230333320 is about 35076.1075377528. The cubic root of 1230333320 is about 1071.5380449073.

Adding to 1230333320 its reverse (233330321), we get a palindrome (1463663641).

Subtracting from 1230333320 its reverse (233330321), we obtain a cube (997002999 = 9993).

The spelling of 1230333320 in words is "one billion, two hundred thirty million, three hundred thirty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 30758333 61516666 123033332 153791665 246066664 307583330 615166660 1230333320