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20300223143 = 198861120577
BaseRepresentation
bin10010111001111111…
…001101001010100111
31221101202110011222102
4102321333031022213
5313033324120033
613154212122315
71316026023014
oct227177151247
957352404872
1020300223143
118677a46122
123b2660639b
131bb6953175
14da811670b
157dc2c0de8
hex4b9fcd2a7

20300223143 has 8 divisors (see below), whose sum is σ = 21371244720. Its totient is φ = 19229460480.

The previous prime is 20300223137. The next prime is 20300223217. The reversal of 20300223143 is 34132200302.

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

It is a cyclic number.

It is not a de Polignac number, because 20300223143 - 212 = 20300219047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300223103) 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, 108071 + ... + 228647.

It is an arithmetic number, because the mean of its divisors is an integer number (2671405590).

Almost surely, 220300223143 is an apocalyptic number.

20300223143 is a deficient number, since it is larger than the sum of its proper divisors (1071021577).

20300223143 is a wasteful number, since it uses less digits than its factorization.

20300223143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129457.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20300223143 its reverse (34132200302), we get a palindrome (54432423445).

The spelling of 20300223143 in words is "twenty billion, three hundred million, two hundred twenty-three thousand, one hundred forty-three".

Divisors: 1 19 8861 120577 168359 2290963 1068432797 20300223143