Search a number
-
+
287795495 = 5134427623
BaseRepresentation
bin10001001001110…
…110100100100111
3202001112112012102
4101021312210213
51042133423440
644320242315
710063135631
oct2111664447
9661475172
10287795495
111384a9019
128047039b
13478169c0
142a317a51
151a3ecb15
hex11276927

287795495 has 8 divisors (see below), whose sum is σ = 371920416. Its totient is φ = 212525856.

The previous prime is 287795491. The next prime is 287795513. The reversal of 287795495 is 594597782.

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 287795495 - 22 = 287795491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287795495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (287795491) 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, 2213747 + ... + 2213876.

It is an arithmetic number, because the mean of its divisors is an integer number (46490052).

Almost surely, 2287795495 is an apocalyptic number.

287795495 is a deficient number, since it is larger than the sum of its proper divisors (84124921).

287795495 is a wasteful number, since it uses less digits than its factorization.

287795495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427641.

The product of its digits is 6350400, while the sum is 56.

The square root of 287795495 is about 16964.5363921329. The cubic root of 287795495 is about 660.2291024349.

The spelling of 287795495 in words is "two hundred eighty-seven million, seven hundred ninety-five thousand, four hundred ninety-five".

Divisors: 1 5 13 65 4427623 22138115 57559099 287795495