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12612402055200 = 25352311671995101
BaseRepresentation
bin1011011110001000110110…
…1111101000100000100000
31122122201210222120211200110
42313202031233220200200
53123120144411231300
642454020231251320
72441134036415613
oct267421557504040
948581728524613
1012612402055200
114022987178aa2
1214b844bb19b40
1370646289279c
1431862d01c17a
1516d12697b550
hexb788dbe8820

12612402055200 has 576 divisors, whose sum is σ = 42854057164800. Its totient is φ = 3218434560000.

The previous prime is 12612402055129. The next prime is 12612402055207. The reversal of 12612402055200 is 255020421621.

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

It is not an unprimeable number, because it can be changed into a prime (12612402055207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2472532650 + ... + 2472537750.

It is an arithmetic number, because the mean of its divisors is an integer number (74399404800).

Almost surely, 212612402055200 is an apocalyptic number.

12612402055200 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 12612402055200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21427028582400).

12612402055200 is an abundant number, since it is smaller than the sum of its proper divisors (30241655109600).

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

12612402055200 is a wasteful number, since it uses less digits than its factorization.

12612402055200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 12612402055200 its reverse (255020421621), we get a palindrome (12867422476821).

The spelling of 12612402055200 in words is "twelve trillion, six hundred twelve billion, four hundred two million, fifty-five thousand, two hundred".