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276485 = 5112457
BaseRepresentation
bin1000011100000000101
3112001021012
41003200011
532321420
65532005
72231036
oct1034005
9461235
10276485
11179800
12114005
1398b01
1472a8d
1556dc5
hex43805

276485 has 12 divisors (see below), whose sum is σ = 365484. Its totient is φ = 200640.

The previous prime is 276467. The next prime is 276487. The reversal of 276485 is 584672.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 101761 = 418^2 + 319^2 .

It is not a de Polignac number, because 276485 - 28 = 276229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276487) 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, 377 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (30457).

2276485 is an apocalyptic number.

It is an amenable number.

276485 is a deficient number, since it is larger than the sum of its proper divisors (88999).

276485 is a wasteful number, since it uses less digits than its factorization.

276485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 473 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 276485 is about 525.8184097196. The cubic root of 276485 is about 65.1464155068.

The spelling of 276485 in words is "two hundred seventy-six thousand, four hundred eighty-five".

Divisors: 1 5 11 55 121 457 605 2285 5027 25135 55297 276485