Search a number
-
+
69008530 = 256900853
BaseRepresentation
bin1000001110011…
…11110010010010
311210211222220111
410013033302102
5120131233110
610503031534
71465364023
oct407176222
9153758814
1069008530
1135a54148
121b13b5aa
13113b2466
149244c4a
1560d1e8a
hex41cfc92

69008530 has 8 divisors (see below), whose sum is σ = 124215372. Its totient is φ = 27603408.

The previous prime is 69008497. The next prime is 69008531. The reversal of 69008530 is 3580096.

It can be written as a sum of positive squares in 2 ways, for example, as 68211081 + 797449 = 8259^2 + 893^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 69008492 and 69008501.

It is not an unprimeable number, because it can be changed into a prime (69008531) 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, 3450417 + ... + 3450436.

Almost surely, 269008530 is an apocalyptic number.

69008530 is a deficient number, since it is larger than the sum of its proper divisors (55206842).

69008530 is a wasteful number, since it uses less digits than its factorization.

69008530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900860.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 69008530 is about 8307.1372927140. The cubic root of 69008530 is about 410.1734938957.

The spelling of 69008530 in words is "sixty-nine million, eight thousand, five hundred thirty".

Divisors: 1 2 5 10 6900853 13801706 34504265 69008530