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1481481 = 32971697
BaseRepresentation
bin101101001101100001001
32210021012200
411221230021
5334401411
651430413
715410121
oct5515411
92707180
101481481
11922071
125b5409
133cb421
142a7c81
151e3e56
hex169b09

1481481 has 12 divisors (see below), whose sum is σ = 2163252. Its totient is φ = 976896.

The previous prime is 1481477. The next prime is 1481483. The reversal of 1481481 is 1841841.

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 360000 = 1059^2 + 600^2 .

It is not a de Polignac number, because 1481481 - 22 = 1481477 is a prime.

It is a super-2 number, since 2×14814812 = 4389571906722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1481483) 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, 25 + ... + 1721.

It is an arithmetic number, because the mean of its divisors is an integer number (180271).

21481481 is an apocalyptic number.

It is an amenable number.

1481481 is a deficient number, since it is larger than the sum of its proper divisors (681771).

1481481 is a wasteful number, since it uses less digits than its factorization.

1481481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1797 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 1481481 is about 1217.1610411117. The cubic root of 1481481 is about 113.9983840953.

The spelling of 1481481 in words is "one million, four hundred eighty-one thousand, four hundred eighty-one".

Divisors: 1 3 9 97 291 873 1697 5091 15273 164609 493827 1481481