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270481 = 1971373
BaseRepresentation
bin1000010000010010001
3111202000211
41002002101
532123411
65444121
72204401
oct1020221
9452024
10270481
11175242
12110641
1396163
1470801
1555221
hex42091

270481 has 4 divisors (see below), whose sum is σ = 272052. Its totient is φ = 268912.

The previous prime is 270463. The next prime is 270493. The reversal of 270481 is 184072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266256 + 4225 = 516^2 + 65^2 .

It is a 3-Lehmer number, since φ(270481) divides (270481-1)3.

It is a cyclic number.

It is not a de Polignac number, because 270481 - 217 = 139409 is a prime.

It is a super-2 number, since 2×2704812 = 146319942722, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 270481 parts by 735 straight cuts.

It is a Duffinian number.

270481 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270421) 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, 490 + ... + 883.

It is an arithmetic number, because the mean of its divisors is an integer number (68013).

2270481 is an apocalyptic number.

It is an amenable number.

270481 is a deficient number, since it is larger than the sum of its proper divisors (1571).

270481 is a wasteful number, since it uses less digits than its factorization.

270481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 270481 is about 520.0778787836. The cubic root of 270481 is about 64.6713987869.

It can be divided in two parts, 2704 and 81, that multiplied together give a square (219024 = 4682).

The spelling of 270481 in words is "two hundred seventy thousand, four hundred eighty-one".

Divisors: 1 197 1373 270481