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260220220 = 225131000847
BaseRepresentation
bin11111000001010…
…10010100111100
3200010122120000221
433200222110330
51013104021340
641453231124
76306556351
oct1740522474
9603576027
10260220220
11123984337
12731924a4
1341bb0580
14267ba628
1517ca244a
hexf82a53c

260220220 has 24 divisors (see below), whose sum is σ = 588498624. Its totient is φ = 96081216.

The previous prime is 260220217. The next prime is 260220221. The reversal of 260220220 is 22022062.

260220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 260220194 and 260220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260220221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500164 + ... + 500683.

It is an arithmetic number, because the mean of its divisors is an integer number (24520776).

Almost surely, 2260220220 is an apocalyptic number.

260220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260220220 is an abundant number, since it is smaller than the sum of its proper divisors (328278404).

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

260220220 is a wasteful number, since it uses less digits than its factorization.

260220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000869 (or 1000867 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 260220220 is about 16131.3427835379. The cubic root of 260220220 is about 638.4305784050.

Adding to 260220220 its reverse (22022062), we get a palindrome (282242282).

It can be divided in two parts, 2602 and 20220, that added together give a palindrome (22822).

The spelling of 260220220 in words is "two hundred sixty million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1000847 2001694 4003388 5004235 10008470 13011011 20016940 26022022 52044044 65055055 130110110 260220220