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12216475486 = 2191493215329
BaseRepresentation
bin10110110000010100…
…01001111101011110
31011112101110020220001
423120022021331132
5200004404203421
65340121244514
7611510220415
oct133012117536
934471406801
1012216475486
1151a9977936
12244b33373a
1311c8c69c27
1483c68c47c
154b7781691
hex2d8289f5e

12216475486 has 16 divisors (see below), whose sum is σ = 19302181200. Its totient is φ = 5782848768.

The previous prime is 12216475477. The next prime is 12216475487. The reversal of 12216475486 is 68457461221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216475487) 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, 50931 + ... + 164398.

It is an arithmetic number, because the mean of its divisors is an integer number (1206386325).

Almost surely, 212216475486 is an apocalyptic number.

12216475486 is a deficient number, since it is larger than the sum of its proper divisors (7085705714).

12216475486 is a wasteful number, since it uses less digits than its factorization.

12216475486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216843.

The product of its digits is 645120, while the sum is 46.

The spelling of 12216475486 in words is "twelve billion, two hundred sixteen million, four hundred seventy-five thousand, four hundred eighty-six".

Divisors: 1 2 19 38 1493 2986 28367 56734 215329 430658 4091251 8182502 321486197 642972394 6108237743 12216475486