Search a number
-
+
4780906 = 213183881
BaseRepresentation
bin10010001111001101101010
322222220011121
4102033031222
52210442111
6250245454
755431334
oct22171552
98886147
104780906
112775a69
12172688a
13cb5150
148c6454
15646871
hex48f36a

4780906 has 8 divisors (see below), whose sum is σ = 7723044. Its totient is φ = 2206560.

The previous prime is 4780903. The next prime is 4780931. The reversal of 4780906 is 6090874.

It can be written as a sum of positive squares in 2 ways, for example, as 3861225 + 919681 = 1965^2 + 959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4780903) 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, 91915 + ... + 91966.

Almost surely, 24780906 is an apocalyptic number.

4780906 is a deficient number, since it is larger than the sum of its proper divisors (2942138).

4780906 is a wasteful number, since it uses less digits than its factorization.

4780906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183896.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 4780906 is about 2186.5282984677. The cubic root of 4780906 is about 168.4625621610.

The spelling of 4780906 in words is "four million, seven hundred eighty thousand, nine hundred six".

Divisors: 1 2 13 26 183881 367762 2390453 4780906