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270440 = 2356761
BaseRepresentation
bin1000010000001101000
3111201222022
41002001220
532123230
65444012
72204312
oct1020150
9451868
10270440
11175205
12110608
1396131
14707b2
15551e5
hex42068

270440 has 16 divisors (see below), whose sum is σ = 608580. Its totient is φ = 108160.

The previous prime is 270437. The next prime is 270443. The reversal of 270440 is 44072.

It is an interprime number because it is at equal distance from previous prime (270437) and next prime (270443).

It can be written as a sum of positive squares in 2 ways, for example, as 268324 + 2116 = 518^2 + 46^2 .

It is not an unprimeable number, because it can be changed into a prime (270443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3341 + ... + 3420.

2270440 is an apocalyptic number.

270440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

270440 is an abundant number, since it is smaller than the sum of its proper divisors (338140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

270440 is a wasteful number, since it uses less digits than its factorization.

270440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772 (or 6768 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 270440 is about 520.0384601162. The cubic root of 270440 is about 64.6681309525.

It can be divided in two parts, 2704 and 40, that added together give a cube (2744 = 143).

The spelling of 270440 in words is "two hundred seventy thousand, four hundred forty", and thus it is an iban number.

Divisors: 1 2 4 5 8 10 20 40 6761 13522 27044 33805 54088 67610 135220 270440