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20101320303 = 319433344797
BaseRepresentation
bin10010101110001000…
…011100111001101111
31220212220011212120120
4102232020130321233
5312131414222203
613122345020023
71311062255241
oct225610347157
956786155516
1020101320303
118585742509
123a8ba84613
131b8469138c
14d8993c091
157c9ad1b53
hex4ae21ce6f

20101320303 has 8 divisors (see below), whose sum is σ = 26803217328. Its totient is φ = 13400151744.

The previous prime is 20101320289. The next prime is 20101320329. The reversal of 20101320303 is 30302310102.

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

It is not a de Polignac number, because 20101320303 - 25 = 20101320271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101322303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 114100 + ... + 230697.

It is an arithmetic number, because the mean of its divisors is an integer number (3350402166).

Almost surely, 220101320303 is an apocalyptic number.

20101320303 is a deficient number, since it is larger than the sum of its proper divisors (6701897025).

20101320303 is a wasteful number, since it uses less digits than its factorization.

20101320303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364233.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20101320303 its reverse (30302310102), we get a palindrome (50403630405).

The spelling of 20101320303 in words is "twenty billion, one hundred one million, three hundred twenty thousand, three hundred three".

Divisors: 1 3 19433 58299 344797 1034391 6700440101 20101320303