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274885 = 5134229
BaseRepresentation
bin1000011000111000101
3111222001221
41003013011
532244020
65520341
72223262
oct1030705
9458057
10274885
11178586
121130b1
1398170
1472269
15566aa
hex431c5

274885 has 8 divisors (see below), whose sum is σ = 355320. Its totient is φ = 202944.

The previous prime is 274871. The next prime is 274889. The reversal of 274885 is 588472.

It can be written as a sum of positive squares in 4 ways, for example, as 60516 + 214369 = 246^2 + 463^2 .

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 274885 - 25 = 274853 is a prime.

274885 is a lucky number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 274885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274889) 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, 2050 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (44415).

2274885 is an apocalyptic number.

It is an amenable number.

274885 is a deficient number, since it is larger than the sum of its proper divisors (80435).

274885 is a wasteful number, since it uses less digits than its factorization.

274885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247.

The product of its digits is 17920, while the sum is 34.

The square root of 274885 is about 524.2947644217. The cubic root of 274885 is about 65.0205063504.

The spelling of 274885 in words is "two hundred seventy-four thousand, eight hundred eighty-five".

Divisors: 1 5 13 65 4229 21145 54977 274885