Search a number
-
+
2132287 = 41131397
BaseRepresentation
bin1000001000100100111111
311000022221121
420020210333
51021213122
6113411411
724060403
oct10104477
94008847
102132287
111227023
12869b67
13598711
143d7103
152c1bc7
hex20893f

2132287 has 8 divisors (see below), whose sum is σ = 2206512. Its totient is φ = 2059200.

The previous prime is 2132281. The next prime is 2132303. The reversal of 2132287 is 7822312.

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 2132287 - 23 = 2132279 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 37 + 27 + 221 + 85 + 72 .

It is a Duffinian number.

2132287 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132281) 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, 5173 + ... + 5569.

It is an arithmetic number, because the mean of its divisors is an integer number (275814).

22132287 is an apocalyptic number.

2132287 is a deficient number, since it is larger than the sum of its proper divisors (74225).

2132287 is a wasteful number, since it uses less digits than its factorization.

2132287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 1344, while the sum is 25.

The square root of 2132287 is about 1460.2352550189. The cubic root of 2132287 is about 128.7108681780.

Adding to 2132287 its sum of digits (25), we get a palindrome (2132312).

Adding to 2132287 its reverse (7822312), we get a palindrome (9954599).

It can be divided in two parts, 213 and 2287, that added together give a square (2500 = 502).

The spelling of 2132287 in words is "two million, one hundred thirty-two thousand, two hundred eighty-seven".

Divisors: 1 41 131 397 5371 16277 52007 2132287