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162047 = 1311237
BaseRepresentation
bin100111100011111111
322020021202
4213203333
520141142
63250115
71243304
oct474377
9266252
10162047
11100826
127993b
13589b2
14430ab
1533032
hex278ff

162047 has 4 divisors (see below), whose sum is σ = 163416. Its totient is φ = 160680.

The previous prime is 162017. The next prime is 162053. The reversal of 162047 is 740261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740261 = 1037187.

It is a cyclic number.

It is not a de Polignac number, because 162047 - 26 = 161983 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162007) 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, 488 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (40854).

2162047 is an apocalyptic number.

162047 is a deficient number, since it is larger than the sum of its proper divisors (1369).

162047 is a wasteful number, since it uses less digits than its factorization.

162047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 162047 is about 402.5506179352. The cubic root of 162047 is about 54.5188891683.

The spelling of 162047 in words is "one hundred sixty-two thousand, forty-seven".

Divisors: 1 131 1237 162047