Search a number
-
+
69161 = 233197
BaseRepresentation
bin10000111000101001
310111212112
4100320221
54203121
61252105
7405431
oct207051
9114775
1069161
1147a64
1234035
1325631
141b2c1
151575b
hex10e29

69161 has 8 divisors (see below), whose sum is σ = 75264. Its totient is φ = 63360.

The previous prime is 69151. The next prime is 69163. The reversal of 69161 is 16196.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69161.

It is not an unprimeable number, because it can be changed into a prime (69163) 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 in 7 ways as a sum of consecutive naturals, for example, 665 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (9408).

269161 is an apocalyptic number.

It is an amenable number.

69161 is a deficient number, since it is larger than the sum of its proper divisors (6103).

69161 is a wasteful number, since it uses less digits than its factorization.

69161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151.

The product of its digits is 324, while the sum is 23.

The square root of 69161 is about 262.9847904347. The cubic root of 69161 is about 41.0475355855.

The spelling of 69161 in words is "sixty-nine thousand, one hundred sixty-one".

Divisors: 1 23 31 97 713 2231 3007 69161