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20764300 = 2252207643
BaseRepresentation
bin100111100110…
…1011010001100
31110001221021011
41033031122030
520303424200
62021015004
7341331214
oct117153214
943057234
1020764300
11107a2587
126b54464
1343c028b
142a87244
151c525ba
hex13cd68c

20764300 has 18 divisors (see below), whose sum is σ = 45058748. Its totient is φ = 8305680.

The previous prime is 20764297. The next prime is 20764301. The reversal of 20764300 is 346702.

It is not an unprimeable number, because it can be changed into a prime (20764301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103722 + ... + 103921.

Almost surely, 220764300 is an apocalyptic number.

20764300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20764300 is an abundant number, since it is smaller than the sum of its proper divisors (24294448).

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

20764300 is a wasteful number, since it uses less digits than its factorization.

20764300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207657 (or 207650 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20764300 is about 4556.7861481531. The cubic root of 20764300 is about 274.8563437017.

The spelling of 20764300 in words is "twenty million, seven hundred sixty-four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 207643 415286 830572 1038215 2076430 4152860 5191075 10382150 20764300