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1293020 = 225173803
BaseRepresentation
bin100111011101011011100
32102200200122
410323223130
5312334040
643414112
713663511
oct4735334
92380618
101293020
11803513
12524338
13363701
14259308
151a81b5
hex13badc

1293020 has 24 divisors (see below), whose sum is σ = 2875824. Its totient is φ = 486656.

The previous prime is 1293011. The next prime is 1293031. The reversal of 1293020 is 203921.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1293020.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1562 + ... + 2241.

It is an arithmetic number, because the mean of its divisors is an integer number (119826).

21293020 is an apocalyptic number.

1293020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293020 is an abundant number, since it is smaller than the sum of its proper divisors (1582804).

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

1293020 is a wasteful number, since it uses less digits than its factorization.

1293020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1293020 is about 1137.1103728311. The cubic root of 1293020 is about 108.9436063249.

Adding to 1293020 its reverse (203921), we get a palindrome (1496941).

The spelling of 1293020 in words is "one million, two hundred ninety-three thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 3803 7606 15212 19015 38030 64651 76060 129302 258604 323255 646510 1293020