Search a number
-
+
69370361 = 1131374481
BaseRepresentation
bin1000010001010…
…00000111111001
311211112101020122
410020220013321
5120224322421
610514503025
71501431644
oct410500771
9154471218
1069370361
1136180a85
121b294a75
13114ab068
1492daa5b
1561542ab
hex42281f9

69370361 has 8 divisors (see below), whose sum is σ = 70510824. Its totient is φ = 68239360.

The previous prime is 69370333. The next prime is 69370373. The reversal of 69370361 is 16307396.

It can be written as a sum of positive squares in 4 ways, for example, as 4648336 + 64722025 = 2156^2 + 8045^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 69370361 - 218 = 69108217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69372361) 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, 13241 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (8813853).

Almost surely, 269370361 is an apocalyptic number.

It is an amenable number.

69370361 is a deficient number, since it is larger than the sum of its proper divisors (1140463).

69370361 is a wasteful number, since it uses less digits than its factorization.

69370361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 69370361 is about 8328.8871405489. The cubic root of 69370361 is about 410.8891293266.

The spelling of 69370361 in words is "sixty-nine million, three hundred seventy thousand, three hundred sixty-one".

Divisors: 1 113 137 4481 15481 506353 613897 69370361