Search a number
-
+
52471880 = 2351311797
BaseRepresentation
bin1100100000101…
…0100001001000
310122201211212222
43020022201020
5101413100010
65112353212
71205001146
oct310124110
9118654788
1052471880
112768999a
12156a5808
13ab42566
146d7c596
154917355
hex320a848

52471880 has 16 divisors (see below), whose sum is σ = 118061820. Its totient is φ = 20988736.

The previous prime is 52471873. The next prime is 52471891. The reversal of 52471880 is 8817425.

It can be written as a sum of positive squares in 2 ways, for example, as 50438404 + 2033476 = 7102^2 + 1426^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52471880.

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, 655859 + ... + 655938.

Almost surely, 252471880 is an apocalyptic number.

It is an amenable number.

52471880 is an abundant number, since it is smaller than the sum of its proper divisors (65589940).

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

52471880 is a wasteful number, since it uses less digits than its factorization.

52471880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311808 (or 1311804 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 52471880 is about 7243.7476488348. The cubic root of 52471880 is about 374.3767543765.

The spelling of 52471880 in words is "fifty-two million, four hundred seventy-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1311797 2623594 5247188 6558985 10494376 13117970 26235940 52471880