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4780885 = 5956177
BaseRepresentation
bin10010001111001101010101
322222220010211
4102033031111
52210442020
6250245421
755431304
oct22171525
98886124
104780885
112775a4a
121726871
13cb5135
148c643b
1564685a
hex48f355

4780885 has 4 divisors (see below), whose sum is σ = 5737068. Its totient is φ = 3824704.

The previous prime is 4780877. The next prime is 4780891. The reversal of 4780885 is 5880874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5880874 = 22940437.

It can be written as a sum of positive squares in 2 ways, for example, as 872356 + 3908529 = 934^2 + 1977^2 .

It is a cyclic number.

It is not a de Polignac number, because 4780885 - 23 = 4780877 is a prime.

It is a super-4 number, since 4×47808854 (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478084 + ... + 478093.

It is an arithmetic number, because the mean of its divisors is an integer number (1434267).

Almost surely, 24780885 is an apocalyptic number.

It is an amenable number.

4780885 is a deficient number, since it is larger than the sum of its proper divisors (956183).

4780885 is an equidigital number, since it uses as much as digits as its factorization.

4780885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956182.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 4780885 is about 2186.5234963293. The cubic root of 4780885 is about 168.4623155049.

It can be divided in two parts, 4780 and 885, that added together give a palindrome (5665).

The spelling of 4780885 in words is "four million, seven hundred eighty thousand, eight hundred eighty-five".

Divisors: 1 5 956177 4780885