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818010229 = 41109183041
BaseRepresentation
bin110000110000011…
…101100001110101
32010000020020002011
4300300131201311
53133402311404
6213100444221
726161654321
oct6060354165
92100206064
10818010229
1138a822213
121a9b49671
1310061a72a
147a8d6981
154bc33604
hex30c1d875

818010229 has 8 divisors (see below), whose sum is σ = 845654040. Its totient is φ = 790732800.

The previous prime is 818010217. The next prime is 818010253. The reversal of 818010229 is 922010818.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101002500 + 717007729 = 10050^2 + 26777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 818010229 - 217 = 817879157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 818010229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818010209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87052 + ... + 95989.

It is an arithmetic number, because the mean of its divisors is an integer number (105706755).

Almost surely, 2818010229 is an apocalyptic number.

It is an amenable number.

818010229 is a deficient number, since it is larger than the sum of its proper divisors (27643811).

818010229 is a wasteful number, since it uses less digits than its factorization.

818010229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183191.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 818010229 is about 28600.8781158901. The cubic root of 818010229 is about 935.2324734838.

The spelling of 818010229 in words is "eight hundred eighteen million, ten thousand, two hundred twenty-nine".

Divisors: 1 41 109 4469 183041 7504681 19951469 818010229