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160641 = 32131373
BaseRepresentation
bin100111001110000001
322011100200
4213032001
520120031
63235413
71236225
oct471601
9264320
10160641
11aa768
1278b69
1358170
1442785
15328e6
hex27381

160641 has 12 divisors (see below), whose sum is σ = 250068. Its totient is φ = 98784.

The previous prime is 160639. The next prime is 160649. The reversal of 160641 is 146061.

It can be written as a sum of positive squares in 2 ways, for example, as 103041 + 57600 = 321^2 + 240^2 .

It is not a de Polignac number, because 160641 - 21 = 160639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (160649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570 + ... + 803.

It is an arithmetic number, because the mean of its divisors is an integer number (20839).

2160641 is an apocalyptic number.

It is an amenable number.

160641 is a deficient number, since it is larger than the sum of its proper divisors (89427).

160641 is a wasteful number, since it uses less digits than its factorization.

160641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 160641 is about 400.8004491015. The cubic root of 160641 is about 54.3607533028.

The spelling of 160641 in words is "one hundred sixty thousand, six hundred forty-one".

Divisors: 1 3 9 13 39 117 1373 4119 12357 17849 53547 160641