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289140141 = 396380047
BaseRepresentation
bin10001001110111…
…110110110101101
3202011001211201010
4101032332312231
51043004441031
644405135433
710110436113
oct2116766655
9664054633
10289140141
111392372a4
12809ba579
1347b97a54
142a587ab3
151a5b6246
hex113bedad

289140141 has 4 divisors (see below), whose sum is σ = 385520192. Its totient is φ = 192760092.

The previous prime is 289140133. The next prime is 289140169. The reversal of 289140141 is 141041982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 289140141 - 23 = 289140133 is a prime.

It is a super-2 number, since 2×2891401412 = 167204042274999762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289140099 and 289140108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289140191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48190021 + ... + 48190026.

It is an arithmetic number, because the mean of its divisors is an integer number (96380048).

Almost surely, 2289140141 is an apocalyptic number.

It is an amenable number.

289140141 is a deficient number, since it is larger than the sum of its proper divisors (96380051).

289140141 is an equidigital number, since it uses as much as digits as its factorization.

289140141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96380050.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 289140141 is about 17004.1212945568. The cubic root of 289140141 is about 661.2557520139.

The spelling of 289140141 in words is "two hundred eighty-nine million, one hundred forty thousand, one hundred forty-one".

Divisors: 1 3 96380047 289140141