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481969 = 3491381
BaseRepresentation
bin1110101101010110001
3220111010201
41311222301
5110410334
614155201
74045105
oct1655261
9814121
10481969
112aa124
121b2b01
1313b4b7
14c7905
1597c14
hex75ab1

481969 has 4 divisors (see below), whose sum is σ = 483700. Its totient is φ = 480240.

The previous prime is 481963. The next prime is 481997. The reversal of 481969 is 969184.

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 288369 + 193600 = 537^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 481969 - 215 = 449201 is a prime.

It is a super-2 number, since 2×4819692 = 464588233922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (481963) 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, 342 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (120925).

2481969 is an apocalyptic number.

It is an amenable number.

481969 is a deficient number, since it is larger than the sum of its proper divisors (1731).

481969 is a wasteful number, since it uses less digits than its factorization.

481969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its digits is 15552, while the sum is 37.

The square root of 481969 is about 694.2398720903. The cubic root of 481969 is about 78.4042675207.

It can be divided in two parts, 48196 and 9, that added together give a triangular number (48205 = T310).

The spelling of 481969 in words is "four hundred eighty-one thousand, nine hundred sixty-nine".

Divisors: 1 349 1381 481969