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31320331301 = 710944991423
BaseRepresentation
bin11101001010110101…
…100101010000100101
32222211202201200102102
4131022311211100211
51003121001100201
622215515221445
72156101265150
oct351265452045
988752650372
1031320331301
1112312568526
1260a1147885
132c51a9b21c
14173193cc97
15c349d326b
hex74ad65425

31320331301 has 16 divisors (see below), whose sum is σ = 36203904000. Its totient is φ = 26540172288.

The previous prime is 31320331247. The next prime is 31320331333. The reversal of 31320331301 is 10313302313.

It is not a de Polignac number, because 31320331301 - 210 = 31320330277 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 (31320331381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296876 + ... + 388298.

It is an arithmetic number, because the mean of its divisors is an integer number (2262744000).

Almost surely, 231320331301 is an apocalyptic number.

It is an amenable number.

31320331301 is a deficient number, since it is larger than the sum of its proper divisors (4883572699).

31320331301 is a wasteful number, since it uses less digits than its factorization.

31320331301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91988.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31320331301 its reverse (10313302313), we get a palindrome (41633633614).

The spelling of 31320331301 in words is "thirty-one billion, three hundred twenty million, three hundred thirty-one thousand, three hundred one".

Divisors: 1 7 109 449 763 3143 48941 91423 342587 639961 9965107 41048927 69755749 287342489 4474333043 31320331301