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2012312886892 = 22711293148714923
BaseRepresentation
bin11101010010000111001…
…100011101111001101100
321010101010112201022102221
4131102013030131321230
5230432204044340032
64140235504525124
7265245663213340
oct35220714357154
97111115638387
102012312886892
11706465188a70
12285bbb6207a4
131179b6489569
146d579c77620
1537528e55597
hex1d48731de6c

2012312886892 has 192 divisors, whose sum is σ = 4698352189440. Its totient is φ = 731010873600.

The previous prime is 2012312886877. The next prime is 2012312886953. The reversal of 2012312886892 is 2986882132102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134838943 + ... + 134853865.

It is an arithmetic number, because the mean of its divisors is an integer number (24470584320).

Almost surely, 22012312886892 is an apocalyptic number.

2012312886892 is a gapful number since it is divisible by the number (22) 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 2012312886892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2349176094720).

2012312886892 is an abundant number, since it is smaller than the sum of its proper divisors (2686039302548).

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

2012312886892 is a wasteful number, since it uses less digits than its factorization.

2012312886892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15492 (or 15490 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 52.

The spelling of 2012312886892 in words is "two trillion, twelve billion, three hundred twelve million, eight hundred eighty-six thousand, eight hundred ninety-two".