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305080237 = 7113962081
BaseRepresentation
bin10010001011110…
…010011110101101
3210021001200102001
4102023302132231
51111100031422
650134532301
710363065520
oct2213623655
9707050361
10305080237
11147234330
1286207091
134b289267
142c736bb7
151bbb4227
hex122f27ad

305080237 has 8 divisors (see below), whose sum is σ = 380359872. Its totient is φ = 237724800.

The previous prime is 305080201. The next prime is 305080241. The reversal of 305080237 is 732080503.

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

It is a cyclic number.

It is not a de Polignac number, because 305080237 - 215 = 305047469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305080247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1980964 + ... + 1981117.

It is an arithmetic number, because the mean of its divisors is an integer number (47544984).

Almost surely, 2305080237 is an apocalyptic number.

It is an amenable number.

305080237 is a deficient number, since it is larger than the sum of its proper divisors (75279635).

305080237 is a wasteful number, since it uses less digits than its factorization.

305080237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3962099.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 305080237 is about 17466.5462241394. The cubic root of 305080237 is about 673.1905719349.

The spelling of 305080237 in words is "three hundred five million, eighty thousand, two hundred thirty-seven".

Divisors: 1 7 11 77 3962081 27734567 43582891 305080237