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30231323212213 = 194337002843589
BaseRepresentation
bin1101101111110110001110…
…10001111111100110110101
310222001002022220010111021101
412313323013101333212311
512430302222220242323
6144144024514250101
76240066241300504
oct667730721774665
9128032286114241
1030231323212213
1196a60399081a2
123483048b86931
1313b3a55cc7a06
147672bd51a83b
153765bd0eedad
hex1b7ec747f9b5

30231323212213 has 8 divisors (see below), whose sum is σ = 32562502359200. Its totient is φ = 27974149752528.

The previous prime is 30231323212171. The next prime is 30231323212241. The reversal of 30231323212213 is 31221232313203.

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 a de Polignac number, because none of the positive numbers 2k-30231323212213 is a prime.

It is a super-2 number, since 2×302313232122132 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231323212243) 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, 18501420978 + ... + 18501422611.

It is an arithmetic number, because the mean of its divisors is an integer number (4070312794900).

Almost surely, 230231323212213 is an apocalyptic number.

It is an amenable number.

30231323212213 is a deficient number, since it is larger than the sum of its proper divisors (2331179146987).

30231323212213 is a wasteful number, since it uses less digits than its factorization.

30231323212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37002843651.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 30231323212213 its reverse (31221232313203), we get a palindrome (61452555525416).

The spelling of 30231323212213 in words is "thirty trillion, two hundred thirty-one billion, three hundred twenty-three million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 19 43 817 37002843589 703054028191 1591122274327 30231323212213