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288395969 = 4315742719
BaseRepresentation
bin10001001100001…
…001001011000001
3202002200000220012
4101030021023001
51042312132334
644341154305
710101216401
oct2114111301
9662600805
10288395969
11138879184
12806bb995
1347997104
142a432801
151a4ba9ce
hex113092c1

288395969 has 8 divisors (see below), whose sum is σ = 296989440. Its totient is φ = 279888336.

The previous prime is 288395963. The next prime is 288395977. The reversal of 288395969 is 969593882.

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 288395969 - 228 = 19960513 is a prime.

It is a super-2 number, since 2×2883959692 = 166344469870897922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288395963) 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, 14609 + ... + 28110.

It is an arithmetic number, because the mean of its divisors is an integer number (37123680).

Almost surely, 2288395969 is an apocalyptic number.

It is an amenable number.

288395969 is a deficient number, since it is larger than the sum of its proper divisors (8593471).

288395969 is a wasteful number, since it uses less digits than its factorization.

288395969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42919.

The product of its digits is 8398080, while the sum is 59.

The square root of 288395969 is about 16982.2250897814. The cubic root of 288395969 is about 660.6879641498.

The spelling of 288395969 in words is "two hundred eighty-eight million, three hundred ninety-five thousand, nine hundred sixty-nine".

Divisors: 1 43 157 6751 42719 1836917 6706883 288395969