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163414221 = 31812571171
BaseRepresentation
bin10011011110110…
…00000011001101
3102101111022011120
421233120003031
5313313223341
624114311153
74022666205
oct1157300315
9371438146
10163414221
1184274583
12468884b9
1327b17809
14179bb405
15e52e066
hex9bd80cd

163414221 has 16 divisors (see below), whose sum is σ = 220129728. Its totient is φ = 107827200.

The previous prime is 163414219. The next prime is 163414249. The reversal of 163414221 is 122414361.

163414221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163414221 - 21 = 163414219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163414191 and 163414200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163414201) 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, 138966 + ... + 140136.

It is an arithmetic number, because the mean of its divisors is an integer number (13758108).

Almost surely, 2163414221 is an apocalyptic number.

It is an amenable number.

163414221 is a deficient number, since it is larger than the sum of its proper divisors (56715507).

163414221 is a wasteful number, since it uses less digits than its factorization.

163414221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its digits is 1152, while the sum is 24.

The square root of 163414221 is about 12783.3571881568. The cubic root of 163414221 is about 546.7178866262.

Adding to 163414221 its reverse (122414361), we get a palindrome (285828582).

The spelling of 163414221 in words is "one hundred sixty-three million, four hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 3 181 257 543 771 1171 3513 46517 139551 211951 300947 635853 902841 54471407 163414221