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30011013221 = 76269683887
BaseRepresentation
bin11011111100110010…
…111011100001100101
32212110112000102200012
4123330302323201211
5442430304410341
621441544100005
72111462255240
oct337462734145
985415012605
1030011013221
1111800486472
125996764605
132aa374cbb7
141649ab4257
15ba9aa20eb
hex6fccbb865

30011013221 has 8 divisors (see below), whose sum is σ = 34303822080. Its totient is φ = 25719584688.

The previous prime is 30011013211. The next prime is 30011013239. The reversal of 30011013221 is 12231011003.

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

It is not a de Polignac number, because 30011013221 - 210 = 30011012197 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 = 30011013196 and 30011013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011013211) 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, 298061 + ... + 385826.

It is an arithmetic number, because the mean of its divisors is an integer number (4287977760).

Almost surely, 230011013221 is an apocalyptic number.

It is an amenable number.

30011013221 is a deficient number, since it is larger than the sum of its proper divisors (4292808859).

30011013221 is an equidigital number, since it uses as much as digits as its factorization.

30011013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690163.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30011013221 its reverse (12231011003), we get a palindrome (42242024224).

The spelling of 30011013221 in words is "thirty billion, eleven million, thirteen thousand, two hundred twenty-one".

Divisors: 1 7 6269 43883 683887 4787209 4287287603 30011013221