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20353050000 = 243255311459
BaseRepresentation
bin10010111101001000…
…101110010110010000
31221112102212001210200
4102331020232112100
5313140340100000
613203340255200
71320240033123
oct227510562620
957472761720
1020353050000
1186a4847788
123b40241500
131bc488b16a
14db11483ba
157e1c58500
hex4bd22e590

20353050000 has 360 divisors, whose sum is σ = 73542792960. Its totient is φ = 5248800000.

The previous prime is 20353049989. The next prime is 20353050007. The reversal of 20353050000 is 5035302.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20353050007) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13949271 + ... + 13950729.

It is an arithmetic number, because the mean of its divisors is an integer number (204285536).

Almost surely, 220353050000 is an apocalyptic number.

20353050000 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 20353050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36771396480).

20353050000 is an abundant number, since it is smaller than the sum of its proper divisors (53189742960).

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

20353050000 is a wasteful number, since it uses less digits than its factorization.

20353050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

Adding to 20353050000 its reverse (5035302), we get a palindrome (20358085302).

The spelling of 20353050000 in words is "twenty billion, three hundred fifty-three million, fifty thousand".