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5642020 = 225282101
BaseRepresentation
bin10101100001011100100100
3101121122101201
4111201130210
52421021040
6320532244
765646016
oct25413444
911548351
105642020
113203a2a
121a81084
131227097
14a6c1b6
15766a9a
hex561724

5642020 has 12 divisors (see below), whose sum is σ = 11848284. Its totient is φ = 2256800.

The previous prime is 5642017. The next prime is 5642027. The reversal of 5642020 is 202465.

It can be written as a sum of positive squares in 2 ways, for example, as 1617984 + 4024036 = 1272^2 + 2006^2 .

It is not an unprimeable number, because it can be changed into a prime (5642027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141031 + ... + 141070.

It is an arithmetic number, because the mean of its divisors is an integer number (987357).

Almost surely, 25642020 is an apocalyptic number.

It is an amenable number.

5642020 is an abundant number, since it is smaller than the sum of its proper divisors (6206264).

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

5642020 is a wasteful number, since it uses less digits than its factorization.

5642020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282110 (or 282108 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 5642020 is about 2375.2936660548. The cubic root of 5642020 is about 178.0238574259.

Adding to 5642020 its reverse (202465), we get a palindrome (5844485).

The spelling of 5642020 in words is "five million, six hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 282101 564202 1128404 1410505 2821010 5642020