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7020420 = 2235112967
BaseRepresentation
bin11010110001111110000100
3111012200012120
4122301332010
53244123140
6410245540
7113446461
oct32617604
914180176
107020420
113a65600
1224268b0
1315ba5c4
14d0a668
1593a1d0
hex6b1f84

7020420 has 72 divisors (see below), whose sum is σ = 21628992. Its totient is φ = 1700160.

The previous prime is 7020413. The next prime is 7020427. The reversal of 7020420 is 240207.

7020420 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7020413) and next prime (7020427).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 7020420.

It is not an unprimeable number, because it can be changed into a prime (7020427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6777 + ... + 7743.

Almost surely, 27020420 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 7020420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10814496).

7020420 is an abundant number, since it is smaller than the sum of its proper divisors (14608572).

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

7020420 is a wasteful number, since it uses less digits than its factorization.

7020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 7020420 is about 2649.6075181053. The cubic root of 7020420 is about 191.4789474820.

7020420 divided by its sum of digits (15) gives a triangular number (468028 = T967).

Adding to 7020420 its reverse (240207), we get a palindrome (7260627).

The spelling of 7020420 in words is "seven million, twenty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 121 132 165 220 242 330 363 484 605 660 726 967 1210 1452 1815 1934 2420 2901 3630 3868 4835 5802 7260 9670 10637 11604 14505 19340 21274 29010 31911 42548 53185 58020 63822 106370 117007 127644 159555 212740 234014 319110 351021 468028 585035 638220 702042 1170070 1404084 1755105 2340140 3510210 7020420