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4780531 = 7682933
BaseRepresentation
bin10010001111000111110011
322222212122201
4102033013303
52210434111
6250244031
755430260
oct22170763
98885581
104780531
112775758
121726617
13cb4c22
148c6267
156466c1
hex48f1f3

4780531 has 4 divisors (see below), whose sum is σ = 5463472. Its totient is φ = 4097592.

The previous prime is 4780513. The next prime is 4780543. The reversal of 4780531 is 1350874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4780531 - 25 = 4780499 is a prime.

It is a super-2 number, since 2×47805312 = 45706953283922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4780531.

It is not an unprimeable number, because it can be changed into a prime (4780561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341460 + ... + 341473.

It is an arithmetic number, because the mean of its divisors is an integer number (1365868).

Almost surely, 24780531 is an apocalyptic number.

4780531 is a deficient number, since it is larger than the sum of its proper divisors (682941).

4780531 is an equidigital number, since it uses as much as digits as its factorization.

4780531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682940.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 4780531 is about 2186.4425444086. The cubic root of 4780531 is about 168.4581574790.

The spelling of 4780531 in words is "four million, seven hundred eighty thousand, five hundred thirty-one".

Divisors: 1 7 682933 4780531