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30033304221 = 397103207231
BaseRepresentation
bin11011111110000111…
…111101101010011101
32212112001221221011210
4123332013331222131
5443002011213341
621444101535033
72112152605464
oct337607755235
985461857153
1030033304221
1111812020a88
1259a2114479
132aa825603b
14164ca379db
15baba06c16
hex6fe1fda9d

30033304221 has 8 divisors (see below), whose sum is σ = 40457234944. Its totient is φ = 19815788160.

The previous prime is 30033304163. The next prime is 30033304229. The reversal of 30033304221 is 12240333003.

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

It is not a de Polignac number, because 30033304221 - 29 = 30033303709 is a prime.

It is a super-2 number, since 2×300333042212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30033304229) 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, 51603325 + ... + 51603906.

It is an arithmetic number, because the mean of its divisors is an integer number (5057154368).

Almost surely, 230033304221 is an apocalyptic number.

It is an amenable number.

30033304221 is a deficient number, since it is larger than the sum of its proper divisors (10423930723).

30033304221 is a wasteful number, since it uses less digits than its factorization.

30033304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103207331.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30033304221 its reverse (12240333003), we get a palindrome (42273637224).

The spelling of 30033304221 in words is "thirty billion, thirty-three million, three hundred four thousand, two hundred twenty-one".

Divisors: 1 3 97 291 103207231 309621693 10011101407 30033304221