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30331323232031 = 311125477773043
BaseRepresentation
bin1101110010110000011111…
…01111110010111100011111
310222101122110001210211201002
412321120033233302330133
512433422022221411111
6144302003441540515
76250236315401003
oct671301757627437
9128348401724632
1030331323232031
119734495257178
12349a4b694473b
1313c0301813483
1476c088584703
15378ec234063b
hex1b960fbf2f1f

30331323232031 has 8 divisors (see below), whose sum is σ = 30431280706944. Its totient is φ = 30231381328920.

The previous prime is 30331323232027. The next prime is 30331323232039. The reversal of 30331323232031 is 13023232313303.

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 30331323232031 - 22 = 30331323232027 is a prime.

It is a super-2 number, since 2×303313232320312 (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 = 30331323231985 and 30331323232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30331323232039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15596 + ... + 7788638.

It is an arithmetic number, because the mean of its divisors is an integer number (3803910088368).

Almost surely, 230331323232031 is an apocalyptic number.

30331323232031 is a deficient number, since it is larger than the sum of its proper divisors (99957474913).

30331323232031 is a wasteful number, since it uses less digits than its factorization.

30331323232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785901.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 30331323232031 its reverse (13023232313303), we get a palindrome (43354555545334).

The spelling of 30331323232031 in words is "thirty trillion, three hundred thirty-one billion, three hundred twenty-three million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 311 12547 3902117 7773043 2417416373 97528370521 30331323232031