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20302103323 = 149283481469
BaseRepresentation
bin10010111010000110…
…011000001100011011
31221101212222201002201
4102322012120030123
5313034314301243
613154320311031
71316051013415
oct227206301433
957355881081
1020302103323
11867900a797
123b27172477
131bb7160bb8
14da84859b5
157dc54304d
hex4ba19831b

20302103323 has 8 divisors (see below), whose sum is σ = 20510622000. Its totient is φ = 20094548448.

The previous prime is 20302103279. The next prime is 20302103347. The reversal of 20302103323 is 32330120302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20302103323 is a prime.

It is a super-3 number, since 3×203021033233 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20302103323.

It is not an unprimeable number, because it can be changed into a prime (20302103623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198568 + ... + 282901.

It is an arithmetic number, because the mean of its divisors is an integer number (2563827750).

Almost surely, 220302103323 is an apocalyptic number.

20302103323 is a deficient number, since it is larger than the sum of its proper divisors (208518677).

20302103323 is a wasteful number, since it uses less digits than its factorization.

20302103323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481901.

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

Adding to 20302103323 its reverse (32330120302), we get a palindrome (52632223625).

The spelling of 20302103323 in words is "twenty billion, three hundred two million, one hundred three thousand, three hundred twenty-three".

Divisors: 1 149 283 42167 481469 71738881 136255727 20302103323