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20300102003 = 75172700559
BaseRepresentation
bin10010111001111110…
…101111100101110011
31221101202020000210202
4102321332233211303
5313033311231003
613154205345415
71316025006566
oct227176574563
957352200722
1020300102003
118677973105
123b2656826b
131bb690cc9c
14da80c44dd
157dc29a088
hex4b9faf973

20300102003 has 4 divisors (see below), whose sum is σ = 20302810080. Its totient is φ = 20297393928.

The previous prime is 20300101979. The next prime is 20300102047. The reversal of 20300102003 is 30020100302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20300102003 - 216 = 20300036467 is a prime.

It is a super-2 number, since 2×203001020032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20300102083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342763 + ... + 1357796.

It is an arithmetic number, because the mean of its divisors is an integer number (5075702520).

Almost surely, 220300102003 is an apocalyptic number.

20300102003 is a deficient number, since it is larger than the sum of its proper divisors (2708077).

20300102003 is an equidigital number, since it uses as much as digits as its factorization.

20300102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708076.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20300102003 its reverse (30020100302), we get a palindrome (50320202305).

The spelling of 20300102003 in words is "twenty billion, three hundred million, one hundred two thousand, three".

Divisors: 1 7517 2700559 20300102003