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308239114 = 2154119557
BaseRepresentation
bin10010010111110…
…101101100001010
3210111000011120111
4102113311230022
51112402122424
650330344534
710431663211
oct2227655412
9714004514
10308239114
11148aa1677
128728b14a
134bb24011
142cd1a078
151c0da194
hex125f5b0a

308239114 has 4 divisors (see below), whose sum is σ = 462358674. Its totient is φ = 154119556.

The previous prime is 308239111. The next prime is 308239133. The reversal of 308239114 is 411932803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 411932803 = 3711133319.

It can be written as a sum of positive squares in only one way, i.e., 244766025 + 63473089 = 15645^2 + 7967^2 .

It is a super-2 number, since 2×3082391142 = 190022702799009992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (308239111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77059777 + ... + 77059780.

Almost surely, 2308239114 is an apocalyptic number.

308239114 is a deficient number, since it is larger than the sum of its proper divisors (154119560).

308239114 is a wasteful number, since it uses less digits than its factorization.

308239114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154119559.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 308239114 is about 17556.7398454269. The cubic root of 308239114 is about 675.5060596435.

The spelling of 308239114 in words is "three hundred eight million, two hundred thirty-nine thousand, one hundred fourteen".

Divisors: 1 2 154119557 308239114