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42890486020 = 2252393240187
BaseRepresentation
bin100111111100011110…
…001110000100000100
311002201010000102220021
4213330132032010010
51200314431023040
631411551544524
73045603054514
oct477436160404
9132633012807
1042890486020
111720a619a68
12838bb2b144
134076b71a15
14210c427844
1511b064724a
hex9fc78e104

42890486020 has 24 divisors (see below), whose sum is σ = 93986109504. Its totient is φ = 16410272736.

The previous prime is 42890486011. The next prime is 42890486027. The reversal of 42890486020 is 2068409824.

It is not an unprimeable number, because it can be changed into a prime (42890486027) 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, 46619634 + ... + 46620553.

It is an arithmetic number, because the mean of its divisors is an integer number (3916087896).

Almost surely, 242890486020 is an apocalyptic number.

It is an amenable number.

42890486020 is an abundant number, since it is smaller than the sum of its proper divisors (51095623484).

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

42890486020 is a wasteful number, since it uses less digits than its factorization.

42890486020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93240219 (or 93240217 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 42890486020 in words is "forty-two billion, eight hundred ninety million, four hundred eighty-six thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 93240187 186480374 372960748 466200935 932401870 1864803740 2144524301 4289048602 8578097204 10722621505 21445243010 42890486020