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212031331000019 = 667333177308543
BaseRepresentation
bin110000001101011101100100…
…001010100101111011010011
31000210201222221000111212111222
4300031131210022211323103
5210242410131214000034
62030541503155355255
762442521020411436
oct6015354412457323
91023658830455458
10212031331000019
1161617a897821a3
121b9451138b2b2b
139140612a13a1b
143a5052a71b81d
15197a64c89e12e
hexc0d7642a5ed3

212031331000019 has 4 divisors (see below), whose sum is σ = 212034508375296. Its totient is φ = 212028153624744.

The previous prime is 212031331000003. The next prime is 212031331000057. The reversal of 212031331000019 is 910000133130212.

212031331000019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212031331000019 - 24 = 212031331000003 is a prime.

It is a super-2 number, since 2×2120313310000192 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212031331009019) 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, 1588587539 + ... + 1588721004.

It is an arithmetic number, because the mean of its divisors is an integer number (53008627093824).

Almost surely, 2212031331000019 is an apocalyptic number.

212031331000019 is a deficient number, since it is larger than the sum of its proper divisors (3177375277).

212031331000019 is an equidigital number, since it uses as much as digits as its factorization.

212031331000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177375276.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 212031331000019 in words is "two hundred twelve trillion, thirty-one billion, three hundred thirty-one million, nineteen", and thus it is an aban number.

Divisors: 1 66733 3177308543 212031331000019