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20507825076 = 22312601135623
BaseRepresentation
bin10011000110010111…
…001001001110110100
31221221020002110021220
4103012113021032310
5314000000400301
613230545510340
71324126431324
oct230627111664
957836073256
1020507825076
118774150572
123b840423b0
131c1a96c64b
14dc7917284
1580062c936
hex4c65c93b4

20507825076 has 24 divisors (see below), whose sum is σ = 47855742144. Its totient is φ = 6835348800.

The previous prime is 20507825057. The next prime is 20507825077. The reversal of 20507825076 is 67052870502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20507825077) by changing a digit.

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, 83401 + ... + 219023.

It is an arithmetic number, because the mean of its divisors is an integer number (1993989256).

Almost surely, 220507825076 is an apocalyptic number.

It is an amenable number.

20507825076 is an abundant number, since it is smaller than the sum of its proper divisors (27347917068).

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

20507825076 is a wasteful number, since it uses less digits than its factorization.

20507825076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148231 (or 148229 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 20507825076 in words is "twenty billion, five hundred seven million, eight hundred twenty-five thousand, seventy-six".

Divisors: 1 2 3 4 6 12 12601 25202 37803 50404 75606 135623 151212 271246 406869 542492 813738 1627476 1708985423 3417970846 5126956269 6835941692 10253912538 20507825076