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102452105 = 5721113873
BaseRepresentation
bin1100001101101…
…00101110001001
321010210002212102
412012310232021
5202211431410
614055523145
72352554120
oct606645611
9233702772
10102452105
1152916868
122a3894b5
13182c1962
14d86cab7
158edb2a5
hex61b4b89

102452105 has 16 divisors (see below), whose sum is σ = 141181824. Its totient is φ = 69914880.

The previous prime is 102452059. The next prime is 102452107. The reversal of 102452105 is 501254201.

It is not a de Polignac number, because 102452105 - 28 = 102451849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102452107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (8823864).

Almost surely, 2102452105 is an apocalyptic number.

It is an amenable number.

102452105 is a deficient number, since it is larger than the sum of its proper divisors (38729719).

102452105 is a wasteful number, since it uses less digits than its factorization.

102452105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14096.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 102452105 is about 10121.8627238271. The cubic root of 102452105 is about 467.9221767130.

The spelling of 102452105 in words is "one hundred two million, four hundred fifty-two thousand, one hundred five".

Divisors: 1 5 7 35 211 1055 1477 7385 13873 69365 97111 485555 2927203 14636015 20490421 102452105