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12681954060 = 2235211365901
BaseRepresentation
bin10111100111110011…
…10100001100001100
31012201211100000110020
423303321310030030
5201433040012220
65454230142140
7626161554666
oct136371641414
935654300406
1012681954060
1154186a5876
12255b1b1950
131271526039
14884419536
154e357b040
hex2f3e7430c

12681954060 has 24 divisors (see below), whose sum is σ = 35509471536. Its totient is φ = 3381854400.

The previous prime is 12681954059. The next prime is 12681954067. The reversal of 12681954060 is 6045918621.

It is not an unprimeable number, because it can be changed into a prime (12681954067) 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, 105682891 + ... + 105683010.

It is an arithmetic number, because the mean of its divisors is an integer number (1479561314).

Almost surely, 212681954060 is an apocalyptic number.

12681954060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12681954060 is an abundant number, since it is smaller than the sum of its proper divisors (22827517476).

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

12681954060 is a wasteful number, since it uses less digits than its factorization.

12681954060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211365913 (or 211365911 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 12681954060 in words is "twelve billion, six hundred eighty-one million, nine hundred fifty-four thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 211365901 422731802 634097703 845463604 1056829505 1268195406 2113659010 2536390812 3170488515 4227318020 6340977030 12681954060