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5480749 = 17322397
BaseRepresentation
bin10100111010000100101101
3101022110011201
4110322010231
52400340444
6313245501
764404601
oct24720455
911273151
105480749
11310384a
121a03891
13119b861
14a29501
15733dd4
hex53a12d

5480749 has 4 divisors (see below), whose sum is σ = 5803164. Its totient is φ = 5158336.

The previous prime is 5480743. The next prime is 5480771. The reversal of 5480749 is 9470845.

5480749 = T1910 + T1911 + T1912.

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 2175625 + 3305124 = 1475^2 + 1818^2 .

It is a cyclic number.

It is not a de Polignac number, because 5480749 - 219 = 4956461 is a prime.

It is a Duffinian number.

5480749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5480743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161182 + ... + 161215.

It is an arithmetic number, because the mean of its divisors is an integer number (1450791).

Almost surely, 25480749 is an apocalyptic number.

5480749 is the 1912-nd centered triangular number.

It is an amenable number.

5480749 is a deficient number, since it is larger than the sum of its proper divisors (322415).

5480749 is a wasteful number, since it uses less digits than its factorization.

5480749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322414.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 5480749 is about 2341.0999551493. The cubic root of 5480749 is about 176.3112283289.

The spelling of 5480749 in words is "five million, four hundred eighty thousand, seven hundred forty-nine".

Divisors: 1 17 322397 5480749