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2001233260 = 2251347916069
BaseRepresentation
bin111011101001000…
…0110010101101100
312011110200011221101
41313102012111230
513044303431020
6530325212444
7100410126205
oct16722062554
95143604841
102001233260
1193770a194
1247a261124
1325b7b97c0
1414dada5ac
15baa5800a
hex7748656c

2001233260 has 48 divisors (see below), whose sum is σ = 4535596800. Its totient is φ = 737328384.

The previous prime is 2001233233. The next prime is 2001233261. The reversal of 2001233260 is 623321002.

It is not an unprimeable number, because it can be changed into a prime (2001233261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116506 + ... + 132574.

It is an arithmetic number, because the mean of its divisors is an integer number (94491600).

Almost surely, 22001233260 is an apocalyptic number.

2001233260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001233260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267798400).

2001233260 is an abundant number, since it is smaller than the sum of its proper divisors (2534363540).

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

2001233260 is a wasteful number, since it uses less digits than its factorization.

2001233260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16570 (or 16568 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2001233260 is about 44735.1456910559. The cubic root of 2001233260 is about 1260.1799650562.

Adding to 2001233260 its reverse (623321002), we get a palindrome (2624554262).

The spelling of 2001233260 in words is "two billion, one million, two hundred thirty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 479 958 1916 2395 4790 6227 9580 12454 16069 24908 31135 32138 62270 64276 80345 124540 160690 208897 321380 417794 835588 1044485 2088970 4177940 7697051 15394102 30788204 38485255 76970510 100061663 153941020 200123326 400246652 500308315 1000616630 2001233260