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20323202310 = 2325225813359
BaseRepresentation
bin10010111011010110…
…110111010100000110
31221110100200122110200
4102323112313110012
5313110214433220
613200352431330
71316425240455
oct227326672406
957410618420
1020323202310
118689a10774
123b32248546
131bbb63a5c8
14dab1b8b9c
157de30e890
hex4bb5b7506

20323202310 has 24 divisors (see below), whose sum is σ = 52840326240. Its totient is φ = 5419520592.

The previous prime is 20323202299. The next prime is 20323202329. The reversal of 20323202310 is 1320232302.

It is a happy number.

20323202310 is a `hidden beast` number, since 2 + 0 + 32 + 320 + 2 + 310 = 666.

It is a super-2 number, since 2×203232023102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 112906590 + ... + 112906769.

It is an arithmetic number, because the mean of its divisors is an integer number (2201680260).

Almost surely, 220323202310 is an apocalyptic number.

20323202310 is an abundant number, since it is smaller than the sum of its proper divisors (32517123930).

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

20323202310 is a wasteful number, since it uses less digits than its factorization.

20323202310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225813372 (or 225813369 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20323202310 its reverse (1320232302), we get a palindrome (21643434612).

The spelling of 20323202310 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 225813359 451626718 677440077 1129066795 1354880154 2032320231 2258133590 3387200385 4064640462 6774400770 10161601155 20323202310