Search a number
-
+
302087 = 2691123
BaseRepresentation
bin1001001110000000111
3120100101102
41021300013
534131322
610250315
72365502
oct1116007
9510342
10302087
11196a65
1212699b
13a7666
147c139
155e792
hex49c07

302087 has 4 divisors (see below), whose sum is σ = 303480. Its totient is φ = 300696.

The previous prime is 302053. The next prime is 302111. The reversal of 302087 is 780203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780203 = 2293407.

It is a cyclic number.

It is not a de Polignac number, because 302087 - 28 = 301831 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 302087.

It is not an unprimeable number, because it can be changed into a prime (302287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293 + ... + 830.

It is an arithmetic number, because the mean of its divisors is an integer number (75870).

2302087 is an apocalyptic number.

302087 is a deficient number, since it is larger than the sum of its proper divisors (1393).

302087 is a wasteful number, since it uses less digits than its factorization.

302087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 302087 is about 549.6244172160. The cubic root of 302087 is about 67.0981704855.

The spelling of 302087 in words is "three hundred two thousand, eighty-seven".

Divisors: 1 269 1123 302087