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12213677894 = 211555167177
BaseRepresentation
bin10110101111111110…
…11110111101000110
31011112012012010022112
423113333132331012
5200003200143034
65335541301022
7611444356235
oct132777367506
934465163275
1012213677894
1151a8336a80
12244a404772
1311c84ca752
1483c160b1c
154b73cc7ce
hex2d7fdef46

12213677894 has 8 divisors (see below), whose sum is σ = 19986018408. Its totient is φ = 5551671760.

The previous prime is 12213677881. The next prime is 12213677923. The reversal of 12213677894 is 49877631221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277583567 + ... + 277583610.

It is an arithmetic number, because the mean of its divisors is an integer number (2498252301).

Almost surely, 212213677894 is an apocalyptic number.

12213677894 is a deficient number, since it is larger than the sum of its proper divisors (7772340514).

12213677894 is a wasteful number, since it uses less digits than its factorization.

12213677894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555167190.

The product of its digits is 1016064, while the sum is 50.

The spelling of 12213677894 in words is "twelve billion, two hundred thirteen million, six hundred seventy-seven thousand, eight hundred ninety-four".

Divisors: 1 2 11 22 555167177 1110334354 6106838947 12213677894