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20330013330 = 23251120535367
BaseRepresentation
bin10010111011110000…
…110110001010010010
31221110211111200102200
4102323300312022102
5313113440411310
613201154424030
71316540155614
oct227360661222
957424450380
1020330013330
118692842a10
123b34592016
131bbcb837b3
14dac06cdb4
157dec079c0
hex4bbc36292

20330013330 has 48 divisors (see below), whose sum is σ = 57663313344. Its totient is φ = 4928487840.

The previous prime is 20330013299. The next prime is 20330013343. The reversal of 20330013330 is 3331003302.

20330013330 is a `hidden beast` number, since 2 + 0 + 330 + 0 + 1 + 3 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 10266694 + ... + 10268673.

It is an arithmetic number, because the mean of its divisors is an integer number (1201319028).

Almost surely, 220330013330 is an apocalyptic number.

20330013330 is an abundant number, since it is smaller than the sum of its proper divisors (37333300014).

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

20330013330 is a wasteful number, since it uses less digits than its factorization.

20330013330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20535391 (or 20535388 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

Adding to 20330013330 its reverse (3331003302), we get a palindrome (23661016632).

The spelling of 20330013330 in words is "twenty billion, three hundred thirty million, thirteen thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 20535367 41070734 61606101 102676835 123212202 184818303 205353670 225889037 308030505 369636606 451778074 616061010 677667111 924091515 1129445185 1355334222 1848183030 2033001333 2258890370 3388335555 4066002666 6776671110 10165006665 20330013330