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288328613 = 3123993877
BaseRepresentation
bin10001001011111…
…000101110100101
3202002112121111112
4101023320232211
51042303003423
644335514405
710100516126
oct2113705645
9662477445
10288328613
11138832611
1280688a05
1347972561
142a41604d
151a4a5a78
hex112f8ba5

288328613 has 8 divisors (see below), whose sum is σ = 297830400. Its totient is φ = 278839440.

The previous prime is 288328603. The next prime is 288328669. The reversal of 288328613 is 316823882.

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 288328613 - 26 = 288328549 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 (288328603) 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, 72431 + ... + 76307.

It is an arithmetic number, because the mean of its divisors is an integer number (37228800).

Almost surely, 2288328613 is an apocalyptic number.

It is an amenable number.

288328613 is a deficient number, since it is larger than the sum of its proper divisors (9501787).

288328613 is a wasteful number, since it uses less digits than its factorization.

288328613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307.

The product of its digits is 110592, while the sum is 41.

The square root of 288328613 is about 16980.2418416229. The cubic root of 288328613 is about 660.6365247306.

The spelling of 288328613 in words is "two hundred eighty-eight million, three hundred twenty-eight thousand, six hundred thirteen".

Divisors: 1 31 2399 3877 74369 120187 9300923 288328613