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12112010808 = 2331726472699
BaseRepresentation
bin10110100011110111…
…01001111000111000
31011021002212220021220
423101323221320320
5144301133321213
65321510232040
7606101251602
oct132173517070
934232786256
1012112010808
115155a06a97
122420355620
1311b0422201
1482c858172
154ad4e8e23
hex2d1ee9e38

12112010808 has 96 divisors (see below), whose sum is σ = 32227632000. Its totient is φ = 3792567808.

The previous prime is 12112010797. The next prime is 12112010819. The reversal of 12112010808 is 80801021121.

It is an interprime number because it is at equal distance from previous prime (12112010797) and next prime (12112010819).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4486243 + ... + 4488941.

It is an arithmetic number, because the mean of its divisors is an integer number (335704500).

Almost surely, 212112010808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12112010808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16113816000).

12112010808 is an abundant number, since it is smaller than the sum of its proper divisors (20115621192).

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

12112010808 is a wasteful number, since it uses less digits than its factorization.

12112010808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

Adding to 12112010808 its reverse (80801021121), we get a palindrome (92913031929).

The spelling of 12112010808 in words is "twelve billion, one hundred twelve million, ten thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 289 408 578 647 867 1156 1294 1734 1941 2312 2588 2699 3468 3882 5176 5398 6936 7764 8097 10796 10999 15528 16194 21592 21998 32388 32997 43996 45883 64776 65994 87992 91766 131988 137649 183532 186983 263976 275298 367064 373966 550596 560949 747932 780011 1101192 1121898 1495864 1560022 1746253 2243796 2340033 3120044 3492506 4487592 4680066 5238759 6240088 6985012 9360132 10477518 13970024 18720264 20955036 29686301 41910072 59372602 89058903 118745204 178117806 237490408 356235612 504667117 712471224 1009334234 1514001351 2018668468 3028002702 4037336936 6056005404 12112010808