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20333223120 = 2435712103109
BaseRepresentation
bin10010111011111101…
…000101110011010000
31221111001112202102210
4102323331011303100
5313120301114440
613201351312120
71316606354610
oct227375056320
957431482383
1020333223120
118694635531
123b3567b640
131bc0738792
14dac666a40
157e013da80
hex4bbf45cd0

20333223120 has 80 divisors (see below), whose sum is σ = 72037710720. Its totient is φ = 4647593472.

The previous prime is 20333223091. The next prime is 20333223121. The reversal of 20333223120 is 2132233302.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333223121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6049875 + ... + 6053234.

It is an arithmetic number, because the mean of its divisors is an integer number (900471384).

Almost surely, 220333223120 is an apocalyptic number.

20333223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20333223120 is an abundant number, since it is smaller than the sum of its proper divisors (51704487600).

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

20333223120 is a wasteful number, since it uses less digits than its factorization.

20333223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12103132 (or 12103126 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20333223120 its reverse (2132233302), we get a palindrome (22465456422).

The spelling of 20333223120 in words is "twenty billion, three hundred thirty-three million, two hundred twenty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 12103109 24206218 36309327 48412436 60515545 72618654 84721763 96824872 121031090 145237308 169443526 181546635 193649744 242062180 254165289 290474616 338887052 363093270 423608815 484124360 508330578 580949232 677774104 726186540 847217630 968248720 1016661156 1270826445 1355548208 1452373080 1694435260 2033322312 2541652890 2904746160 3388870520 4066644624 5083305780 6777741040 10166611560 20333223120