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20051033300 = 22524315130881
BaseRepresentation
bin10010101011001000…
…100111110011010100
31220202101120000202222
4102223020213303110
5312031031031200
613113351121512
71306611654014
oct225310476324
956671500688
1020051033300
11855a316101
123a77073298
131b7713545c
14d82dabc44
157c549bd85
hex4ab227cd4

20051033300 has 72 divisors (see below), whose sum is σ = 44818923072. Its totient is φ = 7781760000.

The previous prime is 20051033291. The next prime is 20051033329. The reversal of 20051033300 is 333015002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633860 + ... + 664740.

Almost surely, 220051033300 is an apocalyptic number.

20051033300 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 20051033300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22409461536).

20051033300 is an abundant number, since it is smaller than the sum of its proper divisors (24767889772).

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

20051033300 is a wasteful number, since it uses less digits than its factorization.

20051033300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31089 (or 31082 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 17.

Adding to 20051033300 its reverse (333015002), we get a palindrome (20384048302).

The spelling of 20051033300 in words is "twenty billion, fifty-one million, thirty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 151 172 215 302 430 604 755 860 1075 1510 2150 3020 3775 4300 6493 7550 12986 15100 25972 30881 32465 61762 64930 123524 129860 154405 162325 308810 324650 617620 649300 772025 1327883 1544050 2655766 3088100 4663031 5311532 6639415 9326062 13278830 18652124 23315155 26557660 33197075 46630310 66394150 93260620 116575775 132788300 200510333 233151550 401020666 466303100 802041332 1002551665 2005103330 4010206660 5012758325 10025516650 20051033300