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20313227262 = 23234310133893
BaseRepresentation
bin10010111010110000…
…110011111111111110
31221102122220212021110
4102322300303333332
5313100141233022
613155354542450
71316244403626
oct227260637776
957378825243
1020313227262
118684318329
123b2aa37a26
131bb9557203
14da9b3d886
157dd4de00c
hex4bac33ffe

20313227262 has 64 divisors (see below), whose sum is σ = 43809486336. Its totient is φ = 6263241600.

The previous prime is 20313227213. The next prime is 20313227269. The reversal of 20313227262 is 26272231302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313227269) 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 31 ways as a sum of consecutive naturals, for example, 582388 + ... + 616280.

It is an arithmetic number, because the mean of its divisors is an integer number (684523224).

Almost surely, 220313227262 is an apocalyptic number.

20313227262 is an abundant number, since it is smaller than the sum of its proper divisors (23496259074).

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

20313227262 is a wasteful number, since it uses less digits than its factorization.

20313227262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34065.

The product of its (nonzero) digits is 12096, while the sum is 30.

Adding to 20313227262 its reverse (26272231302), we get a palindrome (46585458564).

The spelling of 20313227262 in words is "twenty billion, three hundred thirteen million, two hundred twenty-seven thousand, two hundred sixty-two".

Divisors: 1 2 3 6 23 43 46 69 86 101 129 138 202 258 303 606 989 1978 2323 2967 4343 4646 5934 6969 8686 13029 13938 26058 33893 67786 99889 101679 199778 203358 299667 599334 779539 1457399 1559078 2338617 2914798 3423193 4372197 4677234 6846386 8744394 10269579 20539158 33520177 67040354 78733439 100560531 147197299 157466878 201121062 236200317 294394598 441591897 472400634 883183794 3385537877 6771075754 10156613631 20313227262