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7020 = 2233513
BaseRepresentation
bin1101101101100
3100122000
41231230
5211040
652300
726316
oct15554
910560
107020
115302
124090
133270
1427b6
152130
hex1b6c

7020 has 48 divisors (see below), whose sum is σ = 23520. Its totient is φ = 1728.

The previous prime is 7019. The next prime is 7027. The reversal of 7020 is 207.

Adding to 7020 its reverse (207), we get a palindrome (7227).

7020 = T9 + T10 + ... + T34.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 6993 and 7011.

It is not an unprimeable number, because it can be changed into a prime (7027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534 + ... + 546.

It is an arithmetic number, because the mean of its divisors is an integer number (490).

27020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11760).

7020 is an abundant number, since it is smaller than the sum of its proper divisors (16500).

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

7020 is a wasteful number, since it uses less digits than its factorization.

7020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 9.

The square root of 7020 is about 83.7854402626. The cubic root of 7020 is about 19.1475128966.

The spelling of 7020 in words is "seven thousand, twenty", and thus it is an iban number.

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 90 108 117 130 135 156 180 195 234 260 270 351 390 468 540 585 702 780 1170 1404 1755 2340 3510 7020