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1480681 = 5092909
BaseRepresentation
bin101101001011111101001
32210020010001
411221133221
5334340211
651423001
715404566
oct5513751
92706101
101480681
11921504
125b4a61
133cac57
142a786d
151e3ac1
hex1697e9

1480681 has 4 divisors (see below), whose sum is σ = 1484100. Its totient is φ = 1477264.

The previous prime is 1480679. The next prime is 1480691. The reversal of 1480681 is 1860841.

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 1245456 + 235225 = 1116^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1480681 - 21 = 1480679 is a prime.

It is a super-2 number, since 2×14806812 = 4384832447522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

1480681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1480601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946 + ... + 1963.

It is an arithmetic number, because the mean of its divisors is an integer number (371025).

21480681 is an apocalyptic number.

It is an amenable number.

1480681 is a deficient number, since it is larger than the sum of its proper divisors (3419).

1480681 is an equidigital number, since it uses as much as digits as its factorization.

1480681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 1480681 is about 1216.8323631462. The cubic root of 1480681 is about 113.9778606848.

The spelling of 1480681 in words is "one million, four hundred eighty thousand, six hundred eighty-one".

Divisors: 1 509 2909 1480681