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20313331362 = 2332411560883
BaseRepresentation
bin10010111010110001…
…001101011010100010
31221102200010011002000
4102322301031122202
5313100203100422
613155401104430
71316245316262
oct227261153242
957380104060
1020313331362
118684389565
123b2aa88116
131bb95926cc
14da9b697a2
157dd50ecac
hex4bac4d6a2

20313331362 has 32 divisors (see below), whose sum is σ = 45328071360. Its totient is φ = 6743010240.

The previous prime is 20313331361. The next prime is 20313331373. The reversal of 20313331362 is 26313331302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20313331361) 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, 767428 + ... + 793455.

It is an arithmetic number, because the mean of its divisors is an integer number (1416502230).

Almost surely, 220313331362 is an apocalyptic number.

20313331362 is an abundant number, since it is smaller than the sum of its proper divisors (25014739998).

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

20313331362 is a wasteful number, since it uses less digits than its factorization.

20313331362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561135 (or 1561129 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 20313331362 its reverse (26313331302), we get a palindrome (46626662664).

The spelling of 20313331362 in words is "twenty billion, three hundred thirteen million, three hundred thirty-one thousand, three hundred sixty-two".

Divisors: 1 2 3 6 9 18 27 54 241 482 723 1446 2169 4338 6507 13014 1560883 3121766 4682649 9365298 14047947 28095894 42143841 84287682 376172803 752345606 1128518409 2257036818 3385555227 6771110454 10156665681 20313331362