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2602420 = 225130121
BaseRepresentation
bin1001111011010110110100
311220012211221
421323112310
51131234140
6131440124
731056142
oct11732664
94805757
102602420
111518267
12a56044
137016c2
144ba592
1536614a
hex27b5b4

2602420 has 12 divisors (see below), whose sum is σ = 5465124. Its totient is φ = 1040960.

The previous prime is 2602417. The next prime is 2602429. The reversal of 2602420 is 242062.

It can be written as a sum of positive squares in 2 ways, for example, as 1669264 + 933156 = 1292^2 + 966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2602394 and 2602403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2602429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 65041 + ... + 65080.

It is an arithmetic number, because the mean of its divisors is an integer number (455427).

22602420 is an apocalyptic number.

2602420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2602420 is an abundant number, since it is smaller than the sum of its proper divisors (2862704).

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

2602420 is a wasteful number, since it uses less digits than its factorization.

2602420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130130 (or 130128 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2602420 is about 1613.2017852705. The cubic root of 2602420 is about 137.5495358710.

Adding to 2602420 its reverse (242062), we get a palindrome (2844482).

The spelling of 2602420 in words is "two million, six hundred two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 130121 260242 520484 650605 1301210 2602420