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20323221130 = 2523109810659
BaseRepresentation
bin10010111011010110…
…111011111010001010
31221110100201121021201
4102323112323322022
5313110221034010
613200353054414
71316425346362
oct227326737212
957410647251
1020323221130
118689a23923
123b3225740a
131bbb646044
14dab1c19a2
157de31523a
hex4bb5bbe8a

20323221130 has 32 divisors (see below), whose sum is σ = 38522563200. Its totient is φ = 7704493632.

The previous prime is 20323221067. The next prime is 20323221137. The reversal of 20323221130 is 3112232302.

It is a junction number, because it is equal to n+sod(n) for n = 20323221098 and 20323221107.

It is not an unprimeable number, because it can be changed into a prime (20323221137) 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, 380260 + ... + 430399.

It is an arithmetic number, because the mean of its divisors is an integer number (1203830100).

Almost surely, 220323221130 is an apocalyptic number.

20323221130 is a deficient number, since it is larger than the sum of its proper divisors (18199342070).

20323221130 is a wasteful number, since it uses less digits than its factorization.

20323221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810798.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20323221130 its reverse (3112232302), we get a palindrome (23435453432).

The spelling of 20323221130 in words is "twenty billion, three hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 23 46 109 115 218 230 545 1090 2507 5014 12535 25070 810659 1621318 4053295 8106590 18645157 37290314 88361831 93225785 176723662 186451570 441809155 883618310 2032322113 4064644226 10161610565 20323221130