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210020108 = 22173179743
BaseRepresentation
bin11001000010010…
…10011100001100
3112122012010102112
430201022130030
5412231120413
632501243152
75130066344
oct1441123414
9478163375
10210020108
11a8607241
125a4034b8
133468506c
141dc6dd24
15136882a8
hexc84a70c

210020108 has 24 divisors (see below), whose sum is σ = 390422592. Its totient is φ = 98511104.

The previous prime is 210020101. The next prime is 210020137. The reversal of 210020108 is 801020012.

It is a junction number, because it is equal to n+sod(n) for n = 210020092 and 210020101.

It is not an unprimeable number, because it can be changed into a prime (210020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16685 + ... + 26427.

It is an arithmetic number, because the mean of its divisors is an integer number (16267608).

Almost surely, 2210020108 is an apocalyptic number.

It is an amenable number.

210020108 is a deficient number, since it is larger than the sum of its proper divisors (180402484).

210020108 is a wasteful number, since it uses less digits than its factorization.

210020108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081 (or 10079 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 210020108 is about 14492.0705214955. The cubic root of 210020108 is about 594.4111661601.

The spelling of 210020108 in words is "two hundred ten million, twenty thousand, one hundred eight".

Divisors: 1 2 4 17 34 68 317 634 1268 5389 9743 10778 19486 21556 38972 165631 331262 662524 3088531 6177062 12354124 52505027 105010054 210020108