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203001300000 = 253255593823
BaseRepresentation
bin1011110100001111010…
…0100000010000100000
3201101222111202112002200
42331003310200100200
511311221313100000
6233131342213200
720444363402532
oct2750364402040
9641874675080
10203001300000
1179101a3a324
1233414884200
13161b206a335
149b7a945852
155431bc3500
hex2f43d20420

203001300000 has 432 divisors, whose sum is σ = 733981772160. Its totient is φ = 53202240000.

The previous prime is 203001299999. The next prime is 203001300053. The reversal of 203001300000 is 3100302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 53098089 + ... + 53101911.

It is an arithmetic number, because the mean of its divisors is an integer number (1699031880).

Almost surely, 2203001300000 is an apocalyptic number.

203001300000 is a gapful number since it is divisible by the number (20) 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 203001300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366990886080).

203001300000 is an abundant number, since it is smaller than the sum of its proper divisors (530980472160).

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

203001300000 is an equidigital number, since it uses as much as digits as its factorization.

203001300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923 (or 3892 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 203001300000 its reverse (3100302), we get a palindrome (203004400302).

The spelling of 203001300000 in words is "two hundred three billion, one million, three hundred thousand".