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107180221 is a prime number
BaseRepresentation
bin1100110001101…
…11000010111101
321110200022121211
412120313002331
5204414231341
614345124421
72441005531
oct630670275
9243608554
10107180221
11555560a5
122ba89711
1319288a65
141033dbc1
159622181
hex66370bd

107180221 has 2 divisors, whose sum is σ = 107180222. Its totient is φ = 107180220.

The previous prime is 107180219. The next prime is 107180321. The reversal of 107180221 is 122081701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103124025 + 4056196 = 10155^2 + 2014^2 .

It is a cyclic number.

It is not a de Polignac number, because 107180221 - 21 = 107180219 is a prime.

It is a super-2 number, since 2×1071802212 = 22975199547217682, which contains 22 as substring.

Together with 107180219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 107180192 and 107180201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107180321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53590110 + 53590111.

It is an arithmetic number, because the mean of its divisors is an integer number (53590111).

Almost surely, 2107180221 is an apocalyptic number.

It is an amenable number.

107180221 is a deficient number, since it is larger than the sum of its proper divisors (1).

107180221 is an equidigital number, since it uses as much as digits as its factorization.

107180221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 107180221 is about 10352.7880785806. The cubic root of 107180221 is about 475.0123298738.

The spelling of 107180221 in words is "one hundred seven million, one hundred eighty thousand, two hundred twenty-one".