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160987 = 1937229
BaseRepresentation
bin100111010011011011
322011211111
4213103123
520122422
63241151
71240231
oct472333
9264744
10160987
11aaa52
12791b7
1358378
1442951
1532a77
hex274db

160987 has 8 divisors (see below), whose sum is σ = 174800. Its totient is φ = 147744.

The previous prime is 160981. The next prime is 160997. The reversal of 160987 is 789061.

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

It is a de Polignac number, because none of the positive numbers 2k-160987 is a prime.

160987 is a lucky number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (160981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589 + ... + 817.

It is an arithmetic number, because the mean of its divisors is an integer number (21850).

2160987 is an apocalyptic number.

160987 is a deficient number, since it is larger than the sum of its proper divisors (13813).

160987 is a wasteful number, since it uses less digits than its factorization.

160987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 160987 is about 401.2318531722. The cubic root of 160987 is about 54.3997539998.

The spelling of 160987 in words is "one hundred sixty thousand, nine hundred eighty-seven".

Divisors: 1 19 37 229 703 4351 8473 160987