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20330100320 = 255196687533
BaseRepresentation
bin10010111011110001…
…001011011001100000
31221110211200002202112
4102323301023121200
5313114001202240
613201200334452
71316541000335
oct227361133140
957424602675
1020330100320
1186928a2302
123b34614428
131bbcbb427a
14dac09298c
157dec23665
hex4bbc4b660

20330100320 has 48 divisors (see below), whose sum is σ = 50557757040. Its totient is φ = 7704036864.

The previous prime is 20330100319. The next prime is 20330100337. The reversal of 20330100320 is 2300103302.

It is a junction number, because it is equal to n+sod(n) for n = 20330100295 and 20330100304.

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 7 ways as a sum of consecutive naturals, for example, 3340727 + ... + 3346806.

It is an arithmetic number, because the mean of its divisors is an integer number (1053286605).

Almost surely, 220330100320 is an apocalyptic number.

20330100320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330100320 is an abundant number, since it is smaller than the sum of its proper divisors (30227656720).

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

20330100320 is a wasteful number, since it uses less digits than its factorization.

20330100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6687567 (or 6687559 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20330100320 its reverse (2300103302), we get a palindrome (22630203622).

The spelling of 20330100320 in words is "twenty billion, three hundred thirty million, one hundred thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 6687533 13375066 26750132 33437665 53500264 66875330 107000528 127063127 133750660 214001056 254126254 267501320 508252508 535002640 635315635 1016505016 1070005280 1270631270 2033010032 2541262540 4066020064 5082525080 10165050160 20330100320