Search a number
-
+
69689469 = 323229823
BaseRepresentation
bin1000010011101…
…10000001111101
311212010120222110
410021312001331
5120320030334
610525404233
71504231203
oct411660175
9155116873
1069689469
1136379803
121b409679
1311590395
149381073
1561b8ae9
hex427607d

69689469 has 4 divisors (see below), whose sum is σ = 92919296. Its totient is φ = 46459644.

The previous prime is 69689453. The next prime is 69689497. The reversal of 69689469 is 96498696.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 69689469 - 24 = 69689453 is a prime.

It is a super-2 number, since 2×696894692 = 9713244179003922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69689429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11614909 + ... + 11614914.

It is an arithmetic number, because the mean of its divisors is an integer number (23229824).

Almost surely, 269689469 is an apocalyptic number.

It is an amenable number.

69689469 is a deficient number, since it is larger than the sum of its proper divisors (23229827).

69689469 is a wasteful number, since it uses less digits than its factorization.

69689469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23229826.

The product of its digits is 5038848, while the sum is 57.

The square root of 69689469 is about 8348.0218614951. The cubic root of 69689469 is about 411.5182042816.

The spelling of 69689469 in words is "sixty-nine million, six hundred eighty-nine thousand, four hundred sixty-nine".

Divisors: 1 3 23229823 69689469