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20303002330 = 2513198219839
BaseRepresentation
bin10010111010001001…
…110011101011011010
31221101221200101022021
4102322021303223122
5313040032033310
613154351445054
71316061446422
oct227211635332
957357611267
1020303002330
118679574176
123b2752678a
131bb73b7160
14da863b482
157dc66e5da
hex4ba273ada

20303002330 has 32 divisors (see below), whose sum is σ = 41427993600. Its totient is φ = 7101940032.

The previous prime is 20303002327. The next prime is 20303002409. The reversal of 20303002330 is 3320030302.

It is a happy number.

It is a super-2 number, since 2×203030023302 (a number of 21 digits) contains 22 as substring.

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, 4107450 + ... + 4112389.

It is an arithmetic number, because the mean of its divisors is an integer number (1294624800).

Almost surely, 220303002330 is an apocalyptic number.

20303002330 is an abundant number, since it is smaller than the sum of its proper divisors (21124991270).

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

20303002330 is a wasteful number, since it uses less digits than its factorization.

20303002330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8219878.

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 20303002330 its reverse (3320030302), we get a palindrome (23623032632).

The spelling of 20303002330 in words is "twenty billion, three hundred three million, two thousand, three hundred thirty".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 190 247 494 1235 2470 8219839 16439678 41099195 82198390 106857907 156176941 213715814 312353882 534289535 780884705 1068579070 1561769410 2030300233 4060600466 10151501165 20303002330