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5270161 = 13537649
BaseRepresentation
bin10100000110101010010001
3100220202022011
4110012222101
52322121121
6304542521
762536621
oct24065221
910822264
105270161
112a7a606
121921a41
131126a50
149b2881
156e17e1
hex506a91

5270161 has 8 divisors (see below), whose sum is σ = 5783400. Its totient is φ = 4772352.

The previous prime is 5270149. The next prime is 5270171. The reversal of 5270161 is 1610725.

It can be written as a sum of positive squares in 4 ways, for example, as 3136 + 5267025 = 56^2 + 2295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5270161 - 25 = 5270129 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5270101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3136 + ... + 4513.

It is an arithmetic number, because the mean of its divisors is an integer number (722925).

Almost surely, 25270161 is an apocalyptic number.

It is an amenable number.

5270161 is a deficient number, since it is larger than the sum of its proper divisors (513239).

5270161 is a wasteful number, since it uses less digits than its factorization.

5270161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 5270161 is about 2295.6831227328. The cubic root of 5270161 is about 174.0235248063.

Adding to 5270161 its reverse (1610725), we get a palindrome (6880886).

The spelling of 5270161 in words is "five million, two hundred seventy thousand, one hundred sixty-one".

Divisors: 1 13 53 689 7649 99437 405397 5270161