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308069 = 714339
BaseRepresentation
bin1001011001101100101
3120122120222
41023031211
534324234
610334125
72422106
oct1131545
9518528
10308069
111a0503
1212a345
13aa2b8
14803ad
156142e
hex4b365

308069 has 4 divisors (see below), whose sum is σ = 312480. Its totient is φ = 303660.

The previous prime is 308051. The next prime is 308081. The reversal of 308069 is 960803.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 308069 - 216 = 242533 is a prime.

It is a super-2 number, since 2×3080692 = 189813017522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308069.

It is not an unprimeable number, because it can be changed into a prime (308569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2308069 is an apocalyptic number.

It is an amenable number.

308069 is a deficient number, since it is larger than the sum of its proper divisors (4411).

308069 is an equidigital number, since it uses as much as digits as its factorization.

308069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 308069 is about 555.0396382242. The cubic root of 308069 is about 67.5381768491.

The spelling of 308069 in words is "three hundred eight thousand, sixty-nine".

Divisors: 1 71 4339 308069