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30231133213 = 1271391978693
BaseRepresentation
bin11100001001111010…
…100111110000011101
32220000212012200112111
4130021322213300131
5443403132230323
621515450034021
72120104251421
oct341172476035
986025180474
1030231133213
1111903760916
125a38418911
132b0a230108
14166b012b81
15bbe082c0d
hex709ea7c1d

30231133213 has 16 divisors (see below), whose sum is σ = 30847703040. Its totient is φ = 29622753216.

The previous prime is 30231133189. The next prime is 30231133237. The reversal of 30231133213 is 31233113203.

It is an interprime number because it is at equal distance from previous prime (30231133189) and next prime (30231133237).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30231133213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231133913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3473295 + ... + 3481987.

It is an arithmetic number, because the mean of its divisors is an integer number (1927981440).

Almost surely, 230231133213 is an apocalyptic number.

It is an amenable number.

30231133213 is a deficient number, since it is larger than the sum of its proper divisors (616569827).

30231133213 is a wasteful number, since it uses less digits than its factorization.

30231133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9156.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 30231133213 its reverse (31233113203), we get a palindrome (61464246416).

The spelling of 30231133213 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 127 139 197 8693 17653 25019 27383 1104011 1208327 1712521 3477641 153457529 217490167 238040419 30231133213