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4280620 = 225214031
BaseRepresentation
bin10000010101000100101100
322001110220111
4100111010230
52043434440
6231425404
751245641
oct20250454
98043814
104280620
112464103
121525264
13b6b516
147d5dc8
155984ea
hex41512c

4280620 has 12 divisors (see below), whose sum is σ = 8989344. Its totient is φ = 1712240.

The previous prime is 4280611. The next prime is 4280623. The reversal of 4280620 is 260824.

It is a junction number, because it is equal to n+sod(n) for n = 4280591 and 4280600.

It is not an unprimeable number, because it can be changed into a prime (4280623) 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, 106996 + ... + 107035.

It is an arithmetic number, because the mean of its divisors is an integer number (749112).

Almost surely, 24280620 is an apocalyptic number.

It is an amenable number.

4280620 is an abundant number, since it is smaller than the sum of its proper divisors (4708724).

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

4280620 is a wasteful number, since it uses less digits than its factorization.

4280620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214040 (or 214038 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4280620 is about 2068.9659252873. The cubic root of 4280620 is about 162.3686670605.

It can be divided in two parts, 4280 and 620, that added together give a square (4900 = 702).

The spelling of 4280620 in words is "four million, two hundred eighty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 214031 428062 856124 1070155 2140310 4280620