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20233312130000 = 24542023331213
BaseRepresentation
bin1001001100110111011110…
…11000011101001111010000
32122122021201022101201201202
410212123233120131033100
510123000310401130000
6111011015534450332
74155544223300264
oct446335730351720
978567638351652
1020233312130000
1164a0999241592
1223294273639a8
13b39cbac36528
144dd4246000a4
152514acad0dd5
hex1266ef61d3d0

20233312130000 has 50 divisors (see below), whose sum is σ = 48986872022154. Its totient is φ = 8093324848000.

The previous prime is 20233312129973. The next prime is 20233312130099. The reversal of 20233312130000 is 3121333202.

It can be written as a sum of positive squares in 5 ways, for example, as 6490306521664 + 13743005608336 = 2547608^2 + 3707156^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1011655607 + ... + 1011675606.

Almost surely, 220233312130000 is an apocalyptic number.

20233312130000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233312130000 is an abundant number, since it is smaller than the sum of its proper divisors (28753559892154).

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

20233312130000 is an equidigital number, since it uses as much as digits as its factorization.

20233312130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023331241 (or 2023331220 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20233312130000 its reverse (3121333202), we get a palindrome (20236433463202).

The spelling of 20233312130000 in words is "twenty trillion, two hundred thirty-three billion, three hundred twelve million, one hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000 2023331213 4046662426 8093324852 10116656065 16186649704 20233312130 32373299408 40466624260 50583280325 80933248520 101166560650 161866497040 202333121300 252916401625 404666242600 505832803250 809332485200 1011665606500 1264582008125 2023331213000 2529164016250 4046662426000 5058328032500 10116656065000 20233312130000