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4970565161 = 6679774413
BaseRepresentation
bin1001010000100010…
…01100111000101001
3110211101222212112222
410220101030320221
540134431041121
62141120243425
7234114051422
oct45021147051
913741885488
104970565161
1121208331a1
12b68770575
13612a23c23
143521dc649
151e15900ab
hex12844ce29

4970565161 has 4 divisors (see below), whose sum is σ = 4970706372. Its totient is φ = 4970423952.

The previous prime is 4970565151. The next prime is 4970565169. The reversal of 4970565161 is 1615650794.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1784640025 + 3185925136 = 42245^2 + 56444^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4970565161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4970565169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29591 + ... + 104003.

It is an arithmetic number, because the mean of its divisors is an integer number (1242676593).

Almost surely, 24970565161 is an apocalyptic number.

It is an amenable number.

4970565161 is a deficient number, since it is larger than the sum of its proper divisors (141211).

4970565161 is an equidigital number, since it uses as much as digits as its factorization.

4970565161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141210.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 4970565161 is about 70502.2351489653. The cubic root of 4970565161 is about 1706.6138159895.

The spelling of 4970565161 in words is "four billion, nine hundred seventy million, five hundred sixty-five thousand, one hundred sixty-one".

Divisors: 1 66797 74413 4970565161