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30110212221 = 315313655439
BaseRepresentation
bin11100000010101101…
…010110000001111101
32212201102200021010020
4130002231112001331
5443131203242341
621455450202353
72114105403165
oct340255260175
985642607106
1030110212221
1111851480111
125a03a233b9
132abb172c2b
141658d375a5
15bb3649566
hex702b5607d

30110212221 has 8 divisors (see below), whose sum is σ = 40149632640. Its totient is φ = 20072133312.

The previous prime is 30110212207. The next prime is 30110212243. The reversal of 30110212221 is 12221201103.

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

It is not a de Polignac number, because 30110212221 - 29 = 30110211709 is a prime.

It is a super-4 number, since 4×301102122214 (a number of 43 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30110212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30110212291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281781 + ... + 373658.

It is an arithmetic number, because the mean of its divisors is an integer number (5018704080).

Almost surely, 230110212221 is an apocalyptic number.

It is an amenable number.

30110212221 is a deficient number, since it is larger than the sum of its proper divisors (10039420419).

30110212221 is a wasteful number, since it uses less digits than its factorization.

30110212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670755.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30110212221 its reverse (12221201103), we get a palindrome (42331413324).

The spelling of 30110212221 in words is "thirty billion, one hundred ten million, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 15313 45939 655439 1966317 10036737407 30110212221