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1343020 = 225753181
BaseRepresentation
bin101000111111000101100
32112020021111
411013320230
5320434040
644441404
714262340
oct5077054
92466244
101343020
11838038
12549264
133803b3
1426d620
151b7dea
hex147e2c

1343020 has 48 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 449280.

The previous prime is 1343009. The next prime is 1343029. The reversal of 1343020 is 203431.

1343020 = T431 + T432 + ... + T444.

It is not an unprimeable number, because it can be changed into a prime (1343029) 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 15 ways as a sum of consecutive naturals, for example, 7330 + ... + 7510.

It is an arithmetic number, because the mean of its divisors is an integer number (68796).

21343020 is an apocalyptic number.

1343020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1343020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651104).

1343020 is an abundant number, since it is smaller than the sum of its proper divisors (1959188).

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

1343020 is a wasteful number, since it uses less digits than its factorization.

1343020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1343020 is about 1158.8873974636. The cubic root of 1343020 is about 110.3301376592.

Adding to 1343020 its reverse (203431), we get a palindrome (1546451).

The spelling of 1343020 in words is "one million, three hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 53 70 106 140 181 212 265 362 371 530 724 742 905 1060 1267 1484 1810 1855 2534 3620 3710 5068 6335 7420 9593 12670 19186 25340 38372 47965 67151 95930 134302 191860 268604 335755 671510 1343020