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12201146560 = 26538128583
BaseRepresentation
bin10110101110011111…
…01011100011000000
31011111022121110120001
423113033223203000
5144441443142220
65334412525344
7611233014601
oct132717534300
934438543501
1012201146560
1151a1257aa9
122446180854
1311c5a30965
1483a61bda8
154b625480a
hex2d73eb8c0

12201146560 has 28 divisors (see below), whose sum is σ = 29053981008. Its totient is φ = 4880458496.

The previous prime is 12201146557. The next prime is 12201146567. The reversal of 12201146560 is 6564110221.

It is not an unprimeable number, because it can be changed into a prime (12201146567) 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, 19063972 + ... + 19064611.

Almost surely, 212201146560 is an apocalyptic number.

12201146560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201146560 is an abundant number, since it is smaller than the sum of its proper divisors (16852834448).

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

12201146560 is an equidigital number, since it uses as much as digits as its factorization.

12201146560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38128600 (or 38128590 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 12201146560 its reverse (6564110221), we get a palindrome (18765256781).

The spelling of 12201146560 in words is "twelve billion, two hundred one million, one hundred forty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 38128583 76257166 152514332 190642915 305028664 381285830 610057328 762571660 1220114656 1525143320 2440229312 3050286640 6100573280 12201146560