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160904 = 2320113
BaseRepresentation
bin100111010010001000
322011201102
4213102020
520122104
63240532
71240052
oct472210
9264642
10160904
11aa987
1279148
1358313
14428d2
1532a1e
hex27488

160904 has 8 divisors (see below), whose sum is σ = 301710. Its totient is φ = 80448.

The previous prime is 160903. The next prime is 160907. The reversal of 160904 is 409061.

It can be written as a sum of positive squares in only one way, i.e., 158404 + 2500 = 398^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (160903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10049 + ... + 10064.

2160904 is an apocalyptic number.

It is an amenable number.

160904 is a deficient number, since it is larger than the sum of its proper divisors (140806).

160904 is a wasteful number, since it uses less digits than its factorization.

160904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20119 (or 20115 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 160904 is about 401.1284083682. The cubic root of 160904 is about 54.3904034398.

Adding to 160904 its reverse (409061), we get a palindrome (569965).

The spelling of 160904 in words is "one hundred sixty thousand, nine hundred four".

Divisors: 1 2 4 8 20113 40226 80452 160904