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4784740 = 225239237
BaseRepresentation
bin10010010000001001100100
3100000002102121
4102100021210
52211102430
6250315324
755445452
oct22201144
910002377
104784740
112778934
121728b44
13cb6b0c
148c79d2
15647a7a
hex490264

4784740 has 12 divisors (see below), whose sum is σ = 10047996. Its totient is φ = 1913888.

The previous prime is 4784699. The next prime is 4784749. The reversal of 4784740 is 474874.

It can be written as a sum of positive squares in 2 ways, for example, as 1982464 + 2802276 = 1408^2 + 1674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4784696 and 4784705.

It is not an unprimeable number, because it can be changed into a prime (4784749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119599 + ... + 119638.

It is an arithmetic number, because the mean of its divisors is an integer number (837333).

Almost surely, 24784740 is an apocalyptic number.

It is an amenable number.

4784740 is an abundant number, since it is smaller than the sum of its proper divisors (5263256).

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

4784740 is a wasteful number, since it uses less digits than its factorization.

4784740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239246 (or 239244 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 4784740 is about 2187.4048550737. The cubic root of 4784740 is about 168.5075824205.

The spelling of 4784740 in words is "four million, seven hundred eighty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 239237 478474 956948 1196185 2392370 4784740