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1049680 = 24513121
BaseRepresentation
bin100000000010001010000
31222022220001
410000101100
5232042210
634255344
711631202
oct4002120
91868801
101049680
11657705
12427554
132a9a18
141d4772
1515b03a
hex100450

1049680 has 20 divisors (see below), whose sum is σ = 2440692. Its totient is φ = 419840.

The previous prime is 1049677. The next prime is 1049681. The reversal of 1049680 is 869401.

It can be written as a sum of positive squares in 2 ways, for example, as 254016 + 795664 = 504^2 + 892^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×10496802 = 2203656204800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6481 + ... + 6640.

21049680 is an apocalyptic number.

1049680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1049680 is an abundant number, since it is smaller than the sum of its proper divisors (1391012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1049680 is a wasteful number, since it uses less digits than its factorization.

1049680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134 (or 13128 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1049680 is about 1024.5389206858. The cubic root of 1049680 is about 101.6293093361.

The spelling of 1049680 in words is "one million, forty-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 13121 26242 52484 65605 104968 131210 209936 262420 524840 1049680