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20764196000 = 25535191049
BaseRepresentation
bin10011010101101001…
…000111110010100000
31222121002111110002022
4103111221013302200
5320011113233000
613312224441012
71333361516402
oct232551076240
958532443068
1020764196000
118895935869
124035a79168
131c5bb02b12
14100d9b0b72
15817dbe585
hex4d5a47ca0

20764196000 has 48 divisors (see below), whose sum is σ = 51017639400. Its totient is φ = 8305676800.

The previous prime is 20764195987. The next prime is 20764196017. The reversal of 20764196000 is 69146702.

It can be written as a sum of positive squares in 4 ways, for example, as 10452199696 + 10311996304 = 102236^2 + 101548^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591525 + ... + 2599524.

Almost surely, 220764196000 is an apocalyptic number.

20764196000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20764196000 is an abundant number, since it is smaller than the sum of its proper divisors (30253443400).

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

20764196000 is an equidigital number, since it uses as much as digits as its factorization.

20764196000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191074 (or 5191056 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 20764196000 in words is "twenty billion, seven hundred sixty-four million, one hundred ninety-six thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 5191049 10382098 20764196 25955245 41528392 51910490 83056784 103820980 129776225 166113568 207641960 259552450 415283920 519104900 648881125 830567840 1038209800 1297762250 2076419600 2595524500 4152839200 5191049000 10382098000 20764196000