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30320001231 = 3131049741121
BaseRepresentation
bin11100001111001101…
…101000000011001111
32220021001102122112120
4130033031220003033
5444043410014411
621532342504023
72122233521022
oct341715500317
986231378476
1030320001231
1111949939763
125a62135013
132b22776a40
141678b471b9
15bc6c89106
hex70f3680cf

30320001231 has 16 divisors (see below), whose sum is σ = 43577973600. Its totient is φ = 18640650240.

The previous prime is 30320001199. The next prime is 30320001251. The reversal of 30320001231 is 13210002303.

It is not a de Polignac number, because 30320001231 - 25 = 30320001199 is a prime.

It is a super-2 number, since 2×303200012312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30320001231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320001251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329650 + ... + 411471.

It is an arithmetic number, because the mean of its divisors is an integer number (2723623350).

Almost surely, 230320001231 is an apocalyptic number.

30320001231 is a deficient number, since it is larger than the sum of its proper divisors (13257972369).

30320001231 is a wasteful number, since it uses less digits than its factorization.

30320001231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742186.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30320001231 its reverse (13210002303), we get a palindrome (43530003534).

The spelling of 30320001231 in words is "thirty billion, three hundred twenty million, one thousand, two hundred thirty-one".

Divisors: 1 3 13 39 1049 3147 13637 40911 741121 2223363 9634573 28903719 777435929 2332307787 10106667077 30320001231