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42812853890 = 25172310949579
BaseRepresentation
bin100111110111110110…
…000100111010000010
311002111200221022122012
4213313312010322002
51200140042311030
631400140012522
73043641153002
oct476766047202
9132450838565
1042812853890
111717a815884
128369b31142
134063a60351
142101dba002
1511a8910095
hex9f7d84e82

42812853890 has 32 divisors (see below), whose sum is σ = 85143934080. Its totient is φ = 15417005824.

The previous prime is 42812853887. The next prime is 42812853899. The reversal of 42812853890 is 9835821824.

It is not an unprimeable number, because it can be changed into a prime (42812853899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5470880 + ... + 5478699.

It is an arithmetic number, because the mean of its divisors is an integer number (2660747940).

Almost surely, 242812853890 is an apocalyptic number.

42812853890 is a deficient number, since it is larger than the sum of its proper divisors (42331080190).

42812853890 is a wasteful number, since it uses less digits than its factorization.

42812853890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10949626.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 42812853890 in words is "forty-two billion, eight hundred twelve million, eight hundred fifty-three thousand, eight hundred ninety".

Divisors: 1 2 5 10 17 23 34 46 85 115 170 230 391 782 1955 3910 10949579 21899158 54747895 109495790 186142843 251840317 372285686 503680634 930714215 1259201585 1861428430 2518403170 4281285389 8562570778 21406426945 42812853890