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20203200143 = 72412310207
BaseRepresentation
bin10010110100001101…
…000101111010001111
31221010222212220102222
4102310031011322033
5312334004401033
613140424405555
71313440240100
oct226415057217
957128786388
1020203200143
1186281a8325
123aba0168bb
131b9c8126c9
14d9929c3a7
157d3a08598
hex4b4345e8f

20203200143 has 6 divisors (see below), whose sum is σ = 23501681856. Its totient is φ = 17317028652.

The previous prime is 20203200133. The next prime is 20203200151. The reversal of 20203200143 is 34100230202.

It is not a de Polignac number, because 20203200143 - 26 = 20203200079 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 (20203200113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206155055 + ... + 206155152.

It is an arithmetic number, because the mean of its divisors is an integer number (3916946976).

Almost surely, 220203200143 is an apocalyptic number.

20203200143 is a deficient number, since it is larger than the sum of its proper divisors (3298481713).

20203200143 is an equidigital number, since it uses as much as digits as its factorization.

20203200143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412310221 (or 412310214 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20203200143 its reverse (34100230202), we get a palindrome (54303430345).

The spelling of 20203200143 in words is "twenty billion, two hundred three million, two hundred thousand, one hundred forty-three".

Divisors: 1 7 49 412310207 2886171449 20203200143