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8201890143 = 34607916657
BaseRepresentation
bin1111010001101111…
…01110100101011111
3210011121022012010000
413220313232211133
5113244140441033
63433510545343
7410151626106
oct75067564537
923147265100
108201890143
113529831507
12170a968253
13a0930c845
1457b41d03d
153300c9a13
hex1e8dee95f

8201890143 has 20 divisors (see below), whose sum is σ = 12254957440. Its totient is φ = 5466699072.

The previous prime is 8201890139. The next prime is 8201890199. The reversal of 8201890143 is 3410981028.

It is not a de Polignac number, because 8201890143 - 22 = 8201890139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8201890098 and 8201890107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8201890043) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 484071 + ... + 500727.

It is an arithmetic number, because the mean of its divisors is an integer number (612747872).

Almost surely, 28201890143 is an apocalyptic number.

8201890143 is a deficient number, since it is larger than the sum of its proper divisors (4053067297).

8201890143 is a wasteful number, since it uses less digits than its factorization.

8201890143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22748 (or 22739 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8201890143 is about 90564.2873488220. The cubic root of 8201890143 is about 2016.6846035363.

The spelling of 8201890143 in words is "eight billion, two hundred one million, eight hundred ninety thousand, one hundred forty-three".

Divisors: 1 3 9 27 81 6079 16657 18237 49971 54711 149913 164133 449739 492399 1349217 101257903 303773709 911321127 2733963381 8201890143