Search a number
-
+
65695389 = 322796469
BaseRepresentation
bin1111101010011…
…0111010011101
311120121200010120
43322212322131
5113304223024
610304025153
71425254514
oct372467235
9146550116
1065695389
11340a0a11
121a0021b9
13107c2416
148a2167b
155b7a479
hex3ea6e9d

65695389 has 8 divisors (see below), whose sum is σ = 87980640. Its totient is φ = 43603536.

The previous prime is 65695367. The next prime is 65695447. The reversal of 65695389 is 98359656.

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

It is not a de Polignac number, because 65695389 - 216 = 65629853 is a prime.

It is a super-2 number, since 2×656953892 = 8631768271722642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65695319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47554 + ... + 48915.

It is an arithmetic number, because the mean of its divisors is an integer number (10997580).

Almost surely, 265695389 is an apocalyptic number.

It is an amenable number.

65695389 is a deficient number, since it is larger than the sum of its proper divisors (22285251).

65695389 is a wasteful number, since it uses less digits than its factorization.

65695389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96699.

The product of its digits is 1749600, while the sum is 51.

The square root of 65695389 is about 8105.2692120620. The cubic root of 65695389 is about 403.5013228384.

The spelling of 65695389 in words is "sixty-five million, six hundred ninety-five thousand, three hundred eighty-nine".

Divisors: 1 3 227 681 96469 289407 21898463 65695389