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163430541 = 3419910139
BaseRepresentation
bin10011011110111…
…00000010001101
3102101112010120000
421233130002031
5313314234131
624114514513
74023064611
oct1157340215
9371463500
10163430541
118428586a
1246895a39
1327b22081
14179c3341
15e533ce6
hex9bdc08d

163430541 has 20 divisors (see below), whose sum is σ = 245388000. Its totient is φ = 108395496.

The previous prime is 163430513. The next prime is 163430549. The reversal of 163430541 is 145034361.

163430541 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 163430541 - 211 = 163428493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163430549) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11050 + ... + 21188.

It is an arithmetic number, because the mean of its divisors is an integer number (12269400).

Almost surely, 2163430541 is an apocalyptic number.

It is an amenable number.

163430541 is a deficient number, since it is larger than the sum of its proper divisors (81957459).

163430541 is a wasteful number, since it uses less digits than its factorization.

163430541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350 (or 10341 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 163430541 is about 12783.9955021894. The cubic root of 163430541 is about 546.7360860600.

The spelling of 163430541 in words is "one hundred sixty-three million, four hundred thirty thousand, five hundred forty-one".

Divisors: 1 3 9 27 81 199 597 1791 5373 10139 16119 30417 91251 273753 821259 2017661 6052983 18158949 54476847 163430541