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12126914400 = 2535241251491
BaseRepresentation
bin10110100101101001…
…00000011101100000
31011022010221002011210
423102310200131200
5144313442230100
65323201510120
7606342033366
oct132264403540
934263832153
1012126914400
115163366307
122425342340
1311b353c9c3
14830817636
154ae98ec50
hex2d2d20760

12126914400 has 288 divisors, whose sum is σ = 40679646336. Its totient is φ = 3136000000.

The previous prime is 12126914357. The next prime is 12126914411. The reversal of 12126914400 is 441962121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24698155 + ... + 24698645.

It is an arithmetic number, because the mean of its divisors is an integer number (141248772).

Almost surely, 212126914400 is an apocalyptic number.

12126914400 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 12126914400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20339823168).

12126914400 is an abundant number, since it is smaller than the sum of its proper divisors (28552731936).

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

12126914400 is a wasteful number, since it uses less digits than its factorization.

12126914400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 12126914400 in words is "twelve billion, one hundred twenty-six million, nine hundred fourteen thousand, four hundred".