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12111359164 = 22171941228637
BaseRepresentation
bin10110100011110010…
…01010110010111100
31011021001122210101221
423101321022302330
5144301001443124
65321444243124
7606062566012
oct132171126274
934231583357
1012111359164
115155601443
1224200a04a4
1311b0254718
1482c7288b2
154ad41ace4
hex2d1e4acbc

12111359164 has 48 divisors (see below), whose sum is σ = 24199045920. Its totient is φ = 5267773440.

The previous prime is 12111359153. The next prime is 12111359167. The reversal of 12111359164 is 46195311121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111359167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61347 + ... + 167290.

It is an arithmetic number, because the mean of its divisors is an integer number (504146790).

Almost surely, 212111359164 is an apocalyptic number.

It is an amenable number.

12111359164 is a deficient number, since it is larger than the sum of its proper divisors (12087686756).

12111359164 is a wasteful number, since it uses less digits than its factorization.

12111359164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228718 (or 228716 counting only the distinct ones).

The product of its digits is 6480, while the sum is 34.

The spelling of 12111359164 in words is "twelve billion, one hundred eleven million, three hundred fifty-nine thousand, one hundred sixty-four".

Divisors: 1 2 4 17 19 34 38 41 68 76 82 164 323 646 697 779 1292 1394 1558 2788 3116 13243 26486 52972 228637 457274 914548 3886829 4344103 7773658 8688206 9374117 15547316 17376412 18748234 37496468 73849751 147699502 159359989 178108223 295399004 318719978 356216446 637439956 712432892 3027839791 6055679582 12111359164