Search a number
-
+
7886285 = 511143387
BaseRepresentation
bin11110000101010111001101
3112211122221122
4132011113031
54004330120
6441010325
7124014041
oct36052715
915748848
107886285
1144a70a0
1227839a5
131831754
141094021
15a5ba25
hex7855cd

7886285 has 8 divisors (see below), whose sum is σ = 10323936. Its totient is φ = 5735440.

The previous prime is 7886261. The next prime is 7886287. The reversal of 7886285 is 5826887.

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

It is not a de Polignac number, because 7886285 - 210 = 7885261 is a prime.

It is a super-2 number, since 2×78862852 = 124386982202450, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7886287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71639 + ... + 71748.

It is an arithmetic number, because the mean of its divisors is an integer number (1290492).

Almost surely, 27886285 is an apocalyptic number.

It is an amenable number.

7886285 is a deficient number, since it is larger than the sum of its proper divisors (2437651).

7886285 is a wasteful number, since it uses less digits than its factorization.

7886285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143403.

The product of its digits is 215040, while the sum is 44.

The square root of 7886285 is about 2808.2530156665. The cubic root of 7886285 is about 199.0478492381.

The spelling of 7886285 in words is "seven million, eight hundred eighty-six thousand, two hundred eighty-five".

Divisors: 1 5 11 55 143387 716935 1577257 7886285