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20330020000 = 25543783331
BaseRepresentation
bin10010111011110000…
…110111110010100000
31221110211112000120201
4102323300313302200
5313113441120000
613201154514544
71316540214223
oct227360676240
957424460521
1020330020000
118692847a24
123b34595a54
131bbcb86844
14dac0715ba
157dec0996a
hex4bbc37ca0

20330020000 has 240 divisors, whose sum is σ = 52142584032. Its totient is φ = 7793280000.

The previous prime is 20330019979. The next prime is 20330020003. The reversal of 20330020000 is 2003302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20330020003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61419835 + ... + 61420165.

Almost surely, 220330020000 is an apocalyptic number.

20330020000 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 20330020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26071292016).

20330020000 is an abundant number, since it is smaller than the sum of its proper divisors (31812564032).

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

20330020000 is an equidigital number, since it uses as much as digits as its factorization.

20330020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

Adding to 20330020000 its reverse (2003302), we get a palindrome (20332023302).

The spelling of 20330020000 in words is "twenty billion, three hundred thirty million, twenty thousand".