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4905020 = 225245251
BaseRepresentation
bin10010101101100000111100
3100020012102102
4102231200330
52223430040
6253044232
756456231
oct22554074
910205372
104905020
11285023a
121786678
1310297a3
14919788
1566d515
hex4ad83c

4905020 has 12 divisors (see below), whose sum is σ = 10300584. Its totient is φ = 1962000.

The previous prime is 4905007. The next prime is 4905029. The reversal of 4905020 is 205094.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 245251 = 4905020 / (4 + 9 + 0 + 5 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4904983 and 4905001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4905029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122606 + ... + 122645.

It is an arithmetic number, because the mean of its divisors is an integer number (858382).

Almost surely, 24905020 is an apocalyptic number.

It is an amenable number.

4905020 is an abundant number, since it is smaller than the sum of its proper divisors (5395564).

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

4905020 is a wasteful number, since it uses less digits than its factorization.

4905020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245260 (or 245258 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 4905020 is about 2214.7279742668. The cubic root of 4905020 is about 169.9079085993.

The spelling of 4905020 in words is "four million, nine hundred five thousand, twenty".

Divisors: 1 2 4 5 10 20 245251 490502 981004 1226255 2452510 4905020