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20363838208 = 28711363749
BaseRepresentation
bin10010111101110001…
…111000001100000000
31221120012011011102221
4102331301320030000
5313201120310313
613204403420424
71320430524460
oct227561701400
957505134387
1020363838208
1186aa94605a
123b43984714
131bc6b9770c
14db2755ba0
157e2b89c8d
hex4bdc78300

20363838208 has 36 divisors (see below), whose sum is σ = 46455010000. Its totient is φ = 8727358464.

The previous prime is 20363838199. The next prime is 20363838211. The reversal of 20363838208 is 80283836302.

It is a happy number.

It is a super-3 number, since 3×203638382083 (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680083 + ... + 5683666.

Almost surely, 220363838208 is an apocalyptic number.

20363838208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20363838208 is an abundant number, since it is smaller than the sum of its proper divisors (26091171792).

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

20363838208 is an equidigital number, since it uses as much as digits as its factorization.

20363838208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363772 (or 11363758 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 20363838208 in words is "twenty billion, three hundred sixty-three million, eight hundred thirty-eight thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 896 1792 11363749 22727498 45454996 79546243 90909992 159092486 181819984 318184972 363639968 636369944 727279936 1272739888 1454559872 2545479776 2909119744 5090959552 10181919104 20363838208