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31311310310033 = 137930488130779
BaseRepresentation
bin1110001111010001110111…
…00001110100101010010001
311002212022222001101111021212
413013220323201310222101
513101001030414410113
6150332114542025505
76411111313203455
oct707507341645221
9132768861344255
1031311310310033
119a82063427606
123618412578295
13146184a82b820
147a3692b00665
1539472bb370a8
hex1c7a3b874a91

31311310310033 has 8 divisors (see below), whose sum is σ = 34146706473600. Its totient is φ = 28536890408208.

The previous prime is 31311310310029. The next prime is 31311310310039. The reversal of 31311310310033 is 33001301311313.

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

It is not a de Polignac number, because 31311310310033 - 22 = 31311310310029 is a prime.

It is a super-2 number, since 2×313113103100332 (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 = 31311310309990 and 31311310310008.

It is not an unprimeable number, because it can be changed into a prime (31311310310039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15244064363 + ... + 15244066416.

It is an arithmetic number, because the mean of its divisors is an integer number (4268338309200).

Almost surely, 231311310310033 is an apocalyptic number.

It is an amenable number.

31311310310033 is a deficient number, since it is larger than the sum of its proper divisors (2835396163567).

31311310310033 is a wasteful number, since it uses less digits than its factorization.

31311310310033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30488130871.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 31311310310033 its reverse (33001301311313), we get a palindrome (64312611621346).

The spelling of 31311310310033 in words is "thirty-one trillion, three hundred eleven billion, three hundred ten million, three hundred ten thousand, thirty-three".

Divisors: 1 13 79 1027 30488130779 396345700127 2408562331541 31311310310033