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3131332020222 = 237227328438433
BaseRepresentation
bin101101100100010001111…
…011101100011111111110
3102002100111220122011022020
4231210101323230133332
5402300431444121342
610354303012301010
7442142220003240
oct55442173543776
912070456564266
103131332020222
11aa7a9932336a
12426a58911766
1319938b671083
14ab7b325a090
15566be4c00ec
hex2d911eec7fe

3131332020222 has 32 divisors (see below), whose sum is σ = 7188860443392. Its totient is φ = 890725027584.

The previous prime is 3131332020221. The next prime is 3131332020263. The reversal of 3131332020222 is 2220202331313.

It is a junction number, because it is equal to n+sod(n) for n = 3131332020192 and 3131332020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131332020221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164209683 + ... + 164228750.

It is an arithmetic number, because the mean of its divisors is an integer number (224651888856).

Almost surely, 23131332020222 is an apocalyptic number.

3131332020222 is an abundant number, since it is smaller than the sum of its proper divisors (4057528423170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131332020222 is a wasteful number, since it uses less digits than its factorization.

3131332020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328438672.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 3131332020222 its reverse (2220202331313), we get a palindrome (5351534351535).

The spelling of 3131332020222 in words is "three trillion, one hundred thirty-one billion, three hundred thirty-two million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 227 454 681 1362 1589 3178 4767 9534 328438433 656876866 985315299 1970630598 2299069031 4598138062 6897207093 13794414186 74555524291 149111048582 223666572873 447333145746 521888670037 1043777340074 1565666010111 3131332020222