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12139013700 = 223352111133617
BaseRepresentation
bin10110100111000101…
…01010011001000100
31011022222200210022000
423103202222121010
5144330041414300
65324313105300
7606546625332
oct132342523104
934288623260
1012139013700
11516a17a730
1224293b8230
1311b5bb7c58
14832286b52
154b0a7ec00
hex2d38aa644

12139013700 has 288 divisors, whose sum is σ = 42961000320. Its totient is φ = 2915942400.

The previous prime is 12139013681. The next prime is 12139013713. The reversal of 12139013700 is 731093121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3354292 + ... + 3357908.

It is an arithmetic number, because the mean of its divisors is an integer number (149170140).

Almost surely, 212139013700 is an apocalyptic number.

12139013700 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 12139013700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21480500160).

12139013700 is an abundant number, since it is smaller than the sum of its proper divisors (30821986620).

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

12139013700 is a wasteful number, since it uses less digits than its factorization.

12139013700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764 (or 3751 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The spelling of 12139013700 in words is "twelve billion, one hundred thirty-nine million, thirteen thousand, seven hundred".