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12000001112 = 2311136363649
BaseRepresentation
bin10110010110100000…
…10111110001011000
31010222022010012212122
423023100113301120
5144034000013422
65302425400412
7603241216661
oct131320276130
933868105778
1012000001112
1150a87624a0
1223aa939108
131193165198
1481ba1c368
154a3770d42
hex2cb417c58

12000001112 has 16 divisors (see below), whose sum is σ = 24545457000. Its totient is φ = 5454545920.

The previous prime is 12000001051. The next prime is 12000001129. The reversal of 12000001112 is 21110000021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12000001112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68181737 + ... + 68181912.

Almost surely, 212000001112 is an apocalyptic number.

It is an amenable number.

12000001112 is an abundant number, since it is smaller than the sum of its proper divisors (12545455888).

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

12000001112 is a wasteful number, since it uses less digits than its factorization.

12000001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136363666 (or 136363662 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000001112 its reverse (21110000021), we get a palindrome (33110001133).

The spelling of 12000001112 in words is "twelve billion, one thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 136363649 272727298 545454596 1090909192 1500000139 3000000278 6000000556 12000001112