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30100032221 = 710142574303
BaseRepresentation
bin11100000010000110…
…100000101011011101
32212200201112001210012
4130002012200223131
5443121102012341
621454444053005
72113623023660
oct340206405335
985621461705
1030100032221
1111846757796
125a00534165
132ab901a46c
1416578476d7
15bb27d80eb
hex7021a0add

30100032221 has 8 divisors (see below), whose sum is σ = 34740632064. Its totient is φ = 25544581200.

The previous prime is 30100032167. The next prime is 30100032223. The reversal of 30100032221 is 12223000103.

It is a happy number.

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 30100032221 - 210 = 30100031197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30100032196 and 30100032205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100032223) 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, 21286445 + ... + 21287858.

It is an arithmetic number, because the mean of its divisors is an integer number (4342579008).

Almost surely, 230100032221 is an apocalyptic number.

It is an amenable number.

30100032221 is a deficient number, since it is larger than the sum of its proper divisors (4640599843).

30100032221 is a wasteful number, since it uses less digits than its factorization.

30100032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42574411.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30100032221 its reverse (12223000103), we get a palindrome (42323032324).

The spelling of 30100032221 in words is "thirty billion, one hundred million, thirty-two thousand, two hundred twenty-one".

Divisors: 1 7 101 707 42574303 298020121 4300004603 30100032221