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8162061 = 32720687
BaseRepresentation
bin11111001000101100001101
3120100200020120
4133020230031
54042141221
6450535153
7126243045
oct37105415
916320216
108162061
114675306
1228974b9
1318ca12b
141126725
15ab35c6
hex7c8b0d

8162061 has 4 divisors (see below), whose sum is σ = 10882752. Its totient is φ = 5441372.

The previous prime is 8162059. The next prime is 8162069. The reversal of 8162061 is 1602618.

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 a cyclic number.

It is not a de Polignac number, because 8162061 - 21 = 8162059 is a prime.

It is a Curzon number.

8162061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8162069) 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, 1360341 + ... + 1360346.

It is an arithmetic number, because the mean of its divisors is an integer number (2720688).

Almost surely, 28162061 is an apocalyptic number.

It is an amenable number.

8162061 is a deficient number, since it is larger than the sum of its proper divisors (2720691).

8162061 is a wasteful number, since it uses less digits than its factorization.

8162061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720690.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8162061 is about 2856.9320957979. The cubic root of 8162061 is about 201.3414902352.

Adding to 8162061 its reverse (1602618), we get a palindrome (9764679).

The spelling of 8162061 in words is "eight million, one hundred sixty-two thousand, sixty-one".

Divisors: 1 3 2720687 8162061