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8430161 = 61913619
BaseRepresentation
bin100000001010…
…001001010001
3120212022000012
4200022021101
54124231121
6500404305
7131440505
oct40121121
916768005
108430161
114838783
1229a6695
13199217c
141196305
15b17c5b
hex80a251

8430161 has 4 divisors (see below), whose sum is σ = 8444400. Its totient is φ = 8415924.

The previous prime is 8430151. The next prime is 8430203. The reversal of 8430161 is 1610348.

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 8430161 - 214 = 8413777 is a prime.

It is a super-4 number, since 4×84301614 (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8430151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6191 + ... + 7428.

It is an arithmetic number, because the mean of its divisors is an integer number (2111100).

Almost surely, 28430161 is an apocalyptic number.

It is an amenable number.

8430161 is a deficient number, since it is larger than the sum of its proper divisors (14239).

8430161 is a wasteful number, since it uses less digits than its factorization.

8430161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14238.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 8430161 is about 2903.4739537320. The cubic root of 8430161 is about 203.5222786090.

The spelling of 8430161 in words is "eight million, four hundred thirty thousand, one hundred sixty-one".

Divisors: 1 619 13619 8430161