288250313 has 8 divisors (see below), whose sum is σ = 318813768. Its totient is φ = 258885504.

The previous prime is 288250309. The next prime is 288250337. The reversal of 288250313 is 313052882.

It can be written as a sum of positive squares in 4 ways, for example, as 34421689 + 253828624 = 5867^2 + 15932^2 .

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 288250313 - 2² = 288250309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288250313.

It is not an unprimeable number, because it can be changed into a prime (288250363) 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, 299156 + ... + 300117.

It is an arithmetic number, because the mean of its divisors is an integer number (39851721).

Almost surely, 2^288250313 is an apocalyptic number.

It is an amenable number.

288250313 is a deficient number, since it is larger than the sum of its proper divisors (30563455).

288250313 is a wasteful number, since it uses less digits than its factorization.

288250313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599323.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 288250313 is about 16977.9360641981. The cubic root of 288250313 is about 660.5767173664.

The spelling of 288250313 in words is "two hundred eighty-eight million, two hundred fifty thousand, three hundred thirteen".