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12112001202 = 2372174123663
BaseRepresentation
bin10110100011110111…
…00111100010110010
31011021002212102010010
423101323213202302
5144301133014302
65321510115350
7606101211600
oct132173474262
934232772103
1012112001202
1151559aa854
12242034bb56
1311b041aa22
1482c854870
154ad4e616c
hex2d1ee78b2

12112001202 has 48 divisors (see below), whose sum is σ = 28196318592. Its totient is φ = 3458437920.

The previous prime is 12112001173. The next prime is 12112001207. The reversal of 12112001202 is 20210021121.

It is not an unprimeable number, because it can be changed into a prime (12112001207) by changing a digit.

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, 500023 + ... + 523685.

It is an arithmetic number, because the mean of its divisors is an integer number (587423304).

Almost surely, 212112001202 is an apocalyptic number.

12112001202 is an abundant number, since it is smaller than the sum of its proper divisors (16084317390).

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

12112001202 is a wasteful number, since it uses less digits than its factorization.

12112001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25423 (or 25416 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12112001202 its reverse (20210021121), we get a palindrome (32322022323).

The spelling of 12112001202 in words is "twelve billion, one hundred twelve million, one thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 1741 3482 5223 10446 12187 23663 24374 36561 47326 70989 73122 85309 141978 165641 170618 255927 331282 496923 511854 993846 1159487 2318974 3478461 6956922 41197283 82394566 123591849 247183698 288380981 576761962 865142943 1730285886 2018666867 4037333734 6056000601 12112001202