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30011132221 = 715972684599
BaseRepresentation
bin11011111100110011…
…011000100100111101
32212110112020110220121
4123330303120210331
5442430322212341
621441550414541
72111463262210
oct337463304475
985415213817
1030011132221
1111800557914
125996801451
132aa3792105
141649b05777
15ba9ac74d1
hex6fccd893d

30011132221 has 8 divisors (see below), whose sum is σ = 34319926400. Its totient is φ = 25707710448.

The previous prime is 30011132131. The next prime is 30011132227. The reversal of 30011132221 is 12223111003.

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

It is not a de Polignac number, because 30011132221 - 225 = 29977577789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30011132195 and 30011132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011132227) 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, 1331121 + ... + 1353478.

It is an arithmetic number, because the mean of its divisors is an integer number (4289990800).

Almost surely, 230011132221 is an apocalyptic number.

It is an amenable number.

30011132221 is a deficient number, since it is larger than the sum of its proper divisors (4308794179).

30011132221 is a wasteful number, since it uses less digits than its factorization.

30011132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686203.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30011132221 its reverse (12223111003), we get a palindrome (42234243224).

The spelling of 30011132221 in words is "thirty billion, eleven million, one hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 7 1597 11179 2684599 18792193 4287304603 30011132221