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2387489 = 13434271
BaseRepresentation
bin1001000110111000100001
311111022000112
421012320201
51102344424
6123101105
726202416
oct11067041
94438015
102387489
111390835
12971795
13657920
1446210d
1532260e
hex246e21

2387489 has 8 divisors (see below), whose sum is σ = 2631552. Its totient is φ = 2152080.

The previous prime is 2387477. The next prime is 2387501. The reversal of 2387489 is 9847832.

It is an interprime number because it is at equal distance from previous prime (2387477) and next prime (2387501).

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 2387489 - 212 = 2383393 is a prime.

It is a d-powerful number, because it can be written as 220 + 38 + 84 + 75 + 410 + 86 + 93 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2387419) 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, 1577 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (328944).

22387489 is an apocalyptic number.

It is an amenable number.

2387489 is a deficient number, since it is larger than the sum of its proper divisors (244063).

2387489 is a wasteful number, since it uses less digits than its factorization.

2387489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327.

The product of its digits is 96768, while the sum is 41.

The square root of 2387489 is about 1545.1501545157. The cubic root of 2387489 is about 133.6535380404.

The spelling of 2387489 in words is "two million, three hundred eighty-seven thousand, four hundred eighty-nine".

Divisors: 1 13 43 559 4271 55523 183653 2387489