Search a number
-
+
2481128 = 231323857
BaseRepresentation
bin1001011101101111101000
311200001110122
421131233220
51113344003
6125102412
730042416
oct11355750
94601418
102481128
111445121
129b7a08
1368b430
144882b6
15340238
hex25dbe8

2481128 has 16 divisors (see below), whose sum is σ = 5010180. Its totient is φ = 1145088.

The previous prime is 2481121. The next prime is 2481137. The reversal of 2481128 is 8211842.

It can be written as a sum of positive squares in 2 ways, for example, as 1965604 + 515524 = 1402^2 + 718^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2481097 and 2481106.

It is not an unprimeable number, because it can be changed into a prime (2481121) 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, 11825 + ... + 12032.

22481128 is an apocalyptic number.

It is an amenable number.

2481128 is an abundant number, since it is smaller than the sum of its proper divisors (2529052).

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

2481128 is a wasteful number, since it uses less digits than its factorization.

2481128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23876 (or 23872 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

The square root of 2481128 is about 1575.1596744457. The cubic root of 2481128 is about 135.3785079492.

The spelling of 2481128 in words is "two million, four hundred eighty-one thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 23857 47714 95428 190856 310141 620282 1240564 2481128