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12858411221140 = 225642920561057
BaseRepresentation
bin1011101100011101010100…
…0010001000000010010100
31200112020210210020022122211
42323013111002020002110
53141133011233034030
643203023401403204
72464663263005632
oct273072502100224
950466723208584
1012858411221140
114108248a09581
121538067a99504
13723709bbbcb4
143264c97c4352
1517472423112a
hexbb1d5088094

12858411221140 has 12 divisors (see below), whose sum is σ = 27002663564436. Its totient is φ = 5143364488448.

The previous prime is 12858411221053. The next prime is 12858411221207. The reversal of 12858411221140 is 4112211485821.

It can be written as a sum of positive squares in 2 ways, for example, as 1344699990544 + 11513711230596 = 1159612^2 + 3393186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12858411221093 and 12858411221102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321460280509 + ... + 321460280548.

It is an arithmetic number, because the mean of its divisors is an integer number (2250221963703).

Almost surely, 212858411221140 is an apocalyptic number.

12858411221140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12858411221140 is an abundant number, since it is smaller than the sum of its proper divisors (14144252343296).

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

12858411221140 is a wasteful number, since it uses less digits than its factorization.

12858411221140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642920561066 (or 642920561064 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 40.

The spelling of 12858411221140 in words is "twelve trillion, eight hundred fifty-eight billion, four hundred eleven million, two hundred twenty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 642920561057 1285841122114 2571682244228 3214602805285 6429205610570 12858411221140