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163011113 = 17312831093
BaseRepresentation
bin10011011011101…
…01101000101001
3102100201211012122
421231311220221
5313212323423
624101521025
74016400026
oct1155655051
9370654178
10163011113
1184019731
1246713175
1327a061a5
141791454d
15e49e8c8
hex9b75a29

163011113 has 16 divisors (see below), whose sum is σ = 178960896. Its totient is φ = 147813120.

The previous prime is 163011109. The next prime is 163011139. The reversal of 163011113 is 311110361.

It is a cyclic number.

It is not a de Polignac number, because 163011113 - 22 = 163011109 is a prime.

It is a super-2 number, since 2×1630111132 = 53145245922997538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163011091 and 163011100.

It is not an unprimeable number, because it can be changed into a prime (163011913) 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, 148595 + ... + 149687.

It is an arithmetic number, because the mean of its divisors is an integer number (11185056).

Almost surely, 2163011113 is an apocalyptic number.

It is an amenable number.

163011113 is a deficient number, since it is larger than the sum of its proper divisors (15949783).

163011113 is a wasteful number, since it uses less digits than its factorization.

163011113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 163011113 is about 12767.5805460549. The cubic root of 163011113 is about 546.2679710342.

Adding to 163011113 its reverse (311110361), we get a palindrome (474121474).

The spelling of 163011113 in words is "one hundred sixty-three million, eleven thousand, one hundred thirteen".

Divisors: 1 17 31 283 527 1093 4811 8773 18581 33883 149141 309319 576011 5258423 9588889 163011113