Search a number
-
+
361085530 = 25132777581
BaseRepresentation
bin10101100001011…
…011101001011010
3221011110001020011
4111201123221122
51214414214110
655455152134
711643114331
oct2541335132
9834401204
10361085530
111759069a3
12a0b1564a
1359a67ba0
1435d54d18
1521a7848a
hex1585ba5a

361085530 has 16 divisors (see below), whose sum is σ = 699950664. Its totient is φ = 133323840.

The previous prime is 361085509. The next prime is 361085531. The reversal of 361085530 is 35580163.

It can be written as a sum of positive squares in 4 ways, for example, as 330912481 + 30173049 = 18191^2 + 5493^2 .

It is a junction number, because it is equal to n+sod(n) for n = 361085492 and 361085501.

It is not an unprimeable number, because it can be changed into a prime (361085531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388661 + ... + 1388920.

Almost surely, 2361085530 is an apocalyptic number.

361085530 is a deficient number, since it is larger than the sum of its proper divisors (338865134).

361085530 is a wasteful number, since it uses less digits than its factorization.

361085530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777601.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 361085530 is about 19002.2506561723. The cubic root of 361085530 is about 712.0929646003.

The spelling of 361085530 in words is "three hundred sixty-one million, eighty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 2777581 5555162 13887905 27775810 36108553 72217106 180542765 361085530