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230808121221 = 3114661670987
BaseRepresentation
bin1101011011110100111…
…1000110111110000101
3211001202102012101210010
43112331033012332011
512240143334334341
6254010511020433
722450432442256
oct3267517067605
9731672171703
10230808121221
1189981192707
123889520a719
13189c3c4b7c2
14b2579aab2d
15600cecb716
hex35bd3c6f85

230808121221 has 8 divisors (see below), whose sum is σ = 307747304224. Its totient is φ = 153870509520.

The previous prime is 230808121217. The next prime is 230808121241. The reversal of 230808121221 is 122121808032.

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

It is not a de Polignac number, because 230808121221 - 22 = 230808121217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230808121241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8490 + ... + 679476.

It is an arithmetic number, because the mean of its divisors is an integer number (38468413028).

Almost surely, 2230808121221 is an apocalyptic number.

It is an amenable number.

230808121221 is a deficient number, since it is larger than the sum of its proper divisors (76939183003).

230808121221 is a wasteful number, since it uses less digits than its factorization.

230808121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785651.

The product of its (nonzero) digits is 3072, while the sum is 30.

Adding to 230808121221 its reverse (122121808032), we get a palindrome (352929929253).

The spelling of 230808121221 in words is "two hundred thirty billion, eight hundred eight million, one hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 3 114661 343983 670987 2012961 76936040407 230808121221