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30231330312031 = 471489431981057
BaseRepresentation
bin1101101111110110001111…
…01101000100111101011111
310222001002100101111012101121
412313323013231010331133
512430302231024441111
6144144025330351411
76240066355530622
oct667730755047537
9128032311435347
1030231330312031
1196a6042917412
12348304b42b567
1313b3a576124a4
147672c0447db9
153765bda53871
hex1b7ec7b44f5f

30231330312031 has 8 divisors (see below), whose sum is σ = 30895285268160. Its totient is φ = 29568239321088.

The previous prime is 30231330312011. The next prime is 30231330312077. The reversal of 30231330312031 is 13021303313203.

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

It is a cyclic number.

It is not a de Polignac number, because 30231330312031 - 29 = 30231330311519 is a prime.

It is a super-2 number, since 2×302313303120312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231330311987 and 30231330312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231330312011) 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, 215920546 + ... + 216060511.

It is an arithmetic number, because the mean of its divisors is an integer number (3861910658520).

Almost surely, 230231330312031 is an apocalyptic number.

30231330312031 is a deficient number, since it is larger than the sum of its proper divisors (663954956129).

30231330312031 is a wasteful number, since it uses less digits than its factorization.

30231330312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431982593.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 30231330312031 its reverse (13021303313203), we get a palindrome (43252633625234).

The spelling of 30231330312031 in words is "thirty trillion, two hundred thirty-one billion, three hundred thirty million, three hundred twelve thousand, thirty-one".

Divisors: 1 47 1489 69983 431981057 20303109679 643219793873 30231330312031