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12112301331988 = 221113295313777067
BaseRepresentation
bin1011000001000001110101…
…1010110001011000010100
31120212220222002211212011121
42300100131122301120110
53041421443120110423
641432151525213324
72360041055412454
oct260203532613024
946786862755147
1012112301331988
11394a886375780
121437541261244
1369b253909ca0
142dc34a699d64
1516010709e45d
hexb041d6b1614

12112301331988 has 96 divisors (see below), whose sum is σ = 26246967788160. Its totient is φ = 4814257943040.

The previous prime is 12112301331971. The next prime is 12112301332037. The reversal of 12112301331988 is 88913310321121.

It is a super-4 number, since 4×121123013319884 (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6009370 + ... + 7767697.

It is an arithmetic number, because the mean of its divisors is an integer number (273405914460).

Almost surely, 212112301331988 is an apocalyptic number.

It is an amenable number.

12112301331988 is an abundant number, since it is smaller than the sum of its proper divisors (14134666456172).

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

12112301331988 is a wasteful number, since it uses less digits than its factorization.

12112301331988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13777177 (or 13777175 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 12112301331988 in words is "twelve trillion, one hundred twelve billion, three hundred one million, three hundred thirty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11 13 22 26 29 44 52 53 58 106 116 143 212 286 319 377 572 583 638 689 754 1166 1276 1378 1508 1537 2332 2756 3074 4147 6148 7579 8294 15158 16588 16907 19981 30316 33814 39962 67628 79924 219791 439582 879164 13777067 27554134 55108268 151547737 179101871 303095474 358203742 399534943 606190948 716407484 730184551 799069886 1460369102 1598139772 1970120581 2920738204 3940241162 4394884373 5193954259 7880482324 8032030061 8789768746 9492399163 10387908518 16064060122 17579537492 18984798326 20775817036 21175351979 32128120244 37969596652 42350703958 57133496849 84701407916 104416390793 114266993698 208832781586 228533987396 232928871769 275279575727 417665563172 465857743538 550559151454 931715487076 1101118302908 3028075332997 6056150665994 12112301331988