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12108843108 = 22321983213289
BaseRepresentation
bin10110100011011111…
…00100100001100100
31011020212220222000200
423101233210201210
5144244330434413
65321314310500
7606032316405
oct132157444144
934225828020
1012108843108
11515414305a
12241b288430
1311ac88342b
1482c2719ac
154ad0c0573
hex2d1be4864

12108843108 has 72 divisors (see below), whose sum is σ = 32607775200. Its totient is φ = 3777757056.

The previous prime is 12108843091. The next prime is 12108843119. The reversal of 12108843108 is 80134880121.

12108843108 is a `hidden beast` number, since 1 + 210 + 8 + 8 + 431 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49873 + ... + 163416.

Almost surely, 212108843108 is an apocalyptic number.

12108843108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12108843108 is an abundant number, since it is smaller than the sum of its proper divisors (20498932092).

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

12108843108 is a wasteful number, since it uses less digits than its factorization.

12108843108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213401 (or 213396 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 12108843108 in words is "twelve billion, one hundred eight million, eight hundred forty-three thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 83 114 166 171 228 249 332 342 498 684 747 996 1494 1577 2988 3154 4731 6308 9462 14193 18924 28386 56772 213289 426578 639867 853156 1279734 1919601 2559468 3839202 4052491 7678404 8104982 12157473 16209964 17702987 24314946 35405974 36472419 48629892 53108961 70811948 72944838 106217922 145889676 159326883 212435844 318653766 336356753 637307532 672713506 1009070259 1345427012 2018140518 3027210777 4036281036 6054421554 12108843108