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229913613 = 33471031759
BaseRepresentation
bin11011011010000…
…11010000001101
3121000121211012000
431231003100031
5432324213423
634451502513
75461143036
oct1555032015
9530554160
10229913613
11108864556
1264bb7a39
133882bb77
142276ba8d
15152b7843
hexdb4340d

229913613 has 32 divisors (see below), whose sum is σ = 351436800. Its totient is φ = 148473648.

The previous prime is 229913587. The next prime is 229913683. The reversal of 229913613 is 316319922.

It is a happy number.

229913613 is a `hidden beast` number, since 2 + 29 + 9 + 13 + 613 = 666.

It is not a de Polignac number, because 229913613 - 25 = 229913581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229913683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129828 + ... + 131586.

It is an arithmetic number, because the mean of its divisors is an integer number (10982400).

Almost surely, 2229913613 is an apocalyptic number.

It is an amenable number.

229913613 is a deficient number, since it is larger than the sum of its proper divisors (121523187).

229913613 is a wasteful number, since it uses less digits than its factorization.

229913613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1912 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 229913613 is about 15162.9025255721. The cubic root of 229913613 is about 612.6158496956.

The spelling of 229913613 in words is "two hundred twenty-nine million, nine hundred thirteen thousand, six hundred thirteen".

Divisors: 1 3 9 27 47 103 141 309 423 927 1269 1759 2781 4841 5277 14523 15831 43569 47493 82673 130707 181177 248019 543531 744057 1630593 2232171 4891779 8515319 25545957 76637871 229913613