Search a number
-
+
890825 = 52132741
BaseRepresentation
bin11011001011111001001
31200020222112
43121133021
5212001300
631032105
710400105
oct3313711
91606875
10890825
11559321
1236b635
13252620
14192905
15128e35
hexd97c9

890825 has 12 divisors (see below), whose sum is σ = 1190028. Its totient is φ = 657600.

The previous prime is 890821. The next prime is 890833. The reversal of 890825 is 528098.

It can be written as a sum of positive squares in 6 ways, for example, as 163216 + 727609 = 404^2 + 853^2 .

It is not a de Polignac number, because 890825 - 22 = 890821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 890791 and 890800.

It is not an unprimeable number, because it can be changed into a prime (890821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1046 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (99169).

2890825 is an apocalyptic number.

It is an amenable number.

890825 is a deficient number, since it is larger than the sum of its proper divisors (299203).

890825 is a wasteful number, since it uses less digits than its factorization.

890825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 890825 is about 943.8352610493. The cubic root of 890825 is about 96.2197296164.

The spelling of 890825 in words is "eight hundred ninety thousand, eight hundred twenty-five".

Divisors: 1 5 13 25 65 325 2741 13705 35633 68525 178165 890825