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2288605 = 51141611
BaseRepresentation
bin1000101110101111011101
311022021101011
420232233131
51041213410
6121015221
725311214
oct10565735
94267334
102288605
111323510
12924511
13621907
1443807b
1530318a
hex22ebdd

2288605 has 8 divisors (see below), whose sum is σ = 2996064. Its totient is φ = 1664400.

The previous prime is 2288603. The next prime is 2288633. The reversal of 2288605 is 5068822.

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

It is not a de Polignac number, because 2288605 - 21 = 2288603 is a prime.

It is a d-powerful number, because it can be written as 24 + 216 + 8 + 86 + 65 + 0 + 59 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2288603) 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, 20751 + ... + 20860.

It is an arithmetic number, because the mean of its divisors is an integer number (374508).

22288605 is an apocalyptic number.

It is an amenable number.

2288605 is a deficient number, since it is larger than the sum of its proper divisors (707459).

2288605 is a wasteful number, since it uses less digits than its factorization.

2288605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41627.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2288605 is about 1512.8136038521. The cubic root of 2288605 is about 131.7822588668.

The spelling of 2288605 in words is "two million, two hundred eighty-eight thousand, six hundred five".

Divisors: 1 5 11 55 41611 208055 457721 2288605