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12002022260 = 2253716218949
BaseRepresentation
bin10110010110110000…
…00101001101110100
31010222102220220100222
423023120011031310
5144040004203020
65302540553512
7603264335354
oct131330051564
933872826328
1012002022260
1150a9912a68
1223ab552898
1311936c2127
1481bdc6b64
154a3a1eb25
hex2cb605374

12002022260 has 24 divisors (see below), whose sum is σ = 25885444200. Its totient is φ = 4671057024.

The previous prime is 12002022259. The next prime is 12002022269. The reversal of 12002022260 is 6222020021.

It can be written as a sum of positive squares in 4 ways, for example, as 6139976164 + 5862046096 = 78358^2 + 76564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002022269) 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, 8108735 + ... + 8110214.

It is an arithmetic number, because the mean of its divisors is an integer number (1078560175).

Almost surely, 212002022260 is an apocalyptic number.

12002022260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002022260 is an abundant number, since it is smaller than the sum of its proper divisors (13883421940).

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

12002022260 is a wasteful number, since it uses less digits than its factorization.

12002022260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16218995 (or 16218993 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12002022260 its reverse (6222020021), we get a palindrome (18224042281).

The spelling of 12002022260 in words is "twelve billion, two million, twenty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 16218949 32437898 64875796 81094745 162189490 324378980 600101113 1200202226 2400404452 3000505565 6001011130 12002022260