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12090836860 = 2254164123003
BaseRepresentation
bin10110100001010101…
…11000011101111100
31011012122001011002121
423100222320131330
5144230223234420
65315432332324
7605423263144
oct132052703574
934178034077
1012090836860
115144a64763
1224152440a4
1311a8c1a64b
14829b05924
154ab7152aa
hex2d0ab877c

12090836860 has 48 divisors (see below), whose sum is σ = 26051753952. Its totient is φ = 4710809600.

The previous prime is 12090836831. The next prime is 12090836873. The reversal of 12090836860 is 6863809021.

It is a super-3 number, since 3×120908368603 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514119 + ... + 537121.

It is an arithmetic number, because the mean of its divisors is an integer number (542744874).

Almost surely, 212090836860 is an apocalyptic number.

12090836860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12090836860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13025876976).

12090836860 is an abundant number, since it is smaller than the sum of its proper divisors (13960917092).

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

12090836860 is a wasteful number, since it uses less digits than its factorization.

12090836860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23694 (or 23692 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 12090836860 in words is "twelve billion, ninety million, eight hundred thirty-six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 641 820 1282 2564 3205 6410 12820 23003 26281 46006 52562 92012 105124 115015 131405 230030 262810 460060 525620 943123 1886246 3772492 4715615 9431230 14744923 18862460 29489846 58979692 73724615 147449230 294898460 604541843 1209083686 2418167372 3022709215 6045418430 12090836860