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20323210330 = 2531181362203
BaseRepresentation
bin10010111011010110…
…111001010001011010
31221110100201001110201
4102323112321101122
5313110220212310
613200352532414
71316425303033
oct227326712132
957410631421
1020323210330
118689a167a5
123b3225110a
131bbb641157
14dab1bba8a
157de311e3a
hex4bb5b945a

20323210330 has 32 divisors (see below), whose sum is σ = 37970569728. Its totient is φ = 7823563200.

The previous prime is 20323210319. The next prime is 20323210381. The reversal of 20323210330 is 3301232302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20323210298 and 20323210307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124992 + ... + 237211.

It is an arithmetic number, because the mean of its divisors is an integer number (1186580304).

Almost surely, 220323210330 is an apocalyptic number.

20323210330 is a deficient number, since it is larger than the sum of its proper divisors (17647359398).

20323210330 is a wasteful number, since it uses less digits than its factorization.

20323210330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362422.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20323210330 its reverse (3301232302), we get a palindrome (23624442632).

The spelling of 20323210330 in words is "twenty billion, three hundred twenty-three million, two hundred ten thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 181 310 362 905 1810 5611 11222 28055 56110 362203 724406 1811015 3622030 11228293 22456586 56141465 65558743 112282930 131117486 327793715 655587430 2032321033 4064642066 10161605165 20323210330