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102202209 = 3329312919
BaseRepresentation
bin1100001011101…
…11101101100001
321010022102002000
412011313231201
5202130432314
614050314213
72350463424
oct605675541
9233272060
10102202209
115276603a
122a288969
1318234ca5
14d8059bb
158e8c209
hex6177b61

102202209 has 16 divisors (see below), whose sum is σ = 151939200. Its totient is φ = 67897008.

The previous prime is 102202201. The next prime is 102202211. The reversal of 102202209 is 902202201.

It is not a de Polignac number, because 102202209 - 23 = 102202201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102202191 and 102202200.

It is not an unprimeable number, because it can be changed into a prime (102202201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452 + ... + 14370.

It is an arithmetic number, because the mean of its divisors is an integer number (9496200).

Almost surely, 2102202209 is an apocalyptic number.

It is an amenable number.

102202209 is a deficient number, since it is larger than the sum of its proper divisors (49736991).

102202209 is a wasteful number, since it uses less digits than its factorization.

102202209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13221 (or 13215 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 102202209 is about 10109.5108190258. The cubic root of 102202209 is about 467.5414229265.

The spelling of 102202209 in words is "one hundred two million, two hundred two thousand, two hundred nine".

Divisors: 1 3 9 27 293 879 2637 7911 12919 38757 116271 348813 3785267 11355801 34067403 102202209