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12405242020200 = 23352891901122203
BaseRepresentation
bin1011010010000101001000…
…0010110100000101101000
31121220221002122102200122120
42310201102002310011220
53111221413424121300
642214520044551240
72420151314236161
oct264412202640550
947827078380576
1012405242020200
113a530407975a7
121484276552520
136bca6a067013
1430c5ba042768
15167a4eb2a3a0
hexb48520b4168

12405242020200 has 192 divisors, whose sum is σ = 38909118139200. Its totient is φ = 3269147904000.

The previous prime is 12405242020183. The next prime is 12405242020211. The reversal of 12405242020200 is 202024250421.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 101452299 + ... + 101574501.

It is an arithmetic number, because the mean of its divisors is an integer number (202651656975).

Almost surely, 212405242020200 is an apocalyptic number.

12405242020200 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 12405242020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19454559069600).

12405242020200 is an abundant number, since it is smaller than the sum of its proper divisors (26503876119000).

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

12405242020200 is a wasteful number, since it uses less digits than its factorization.

12405242020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124212 (or 124203 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 12405242020200 its reverse (202024250421), we get a palindrome (12607266270621).

The spelling of 12405242020200 in words is "twelve trillion, four hundred five billion, two hundred forty-two million, twenty thousand, two hundred".