Search a number
-
+
328047880 = 2358201197
BaseRepresentation
bin10011100011011…
…001110100001000
3211212021120002111
4103203121310020
51132440013010
652315112104
711062234546
oct2343316410
9755246074
10328047880
111591a1256
1291a42634
1352c6b394
14317d4d96
151dbee58a
hex138d9d08

328047880 has 16 divisors (see below), whose sum is σ = 738107820. Its totient is φ = 131219136.

The previous prime is 328047877. The next prime is 328047887. The reversal of 328047880 is 88740823.

It can be written as a sum of positive squares in 2 ways, for example, as 303386724 + 24661156 = 17418^2 + 4966^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 8201197 = 328047880 / (3 + 2 + 8 + 0 + 4 + 7 + 8 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (328047887) 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, 4100559 + ... + 4100638.

Almost surely, 2328047880 is an apocalyptic number.

It is an amenable number.

328047880 is an abundant number, since it is smaller than the sum of its proper divisors (410059940).

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

328047880 is a wasteful number, since it uses less digits than its factorization.

328047880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201208 (or 8201204 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 328047880 is about 18112.0920934054. The cubic root of 328047880 is about 689.6770034848.

The spelling of 328047880 in words is "three hundred twenty-eight million, forty-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 8201197 16402394 32804788 41005985 65609576 82011970 164023940 328047880