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361487061 = 32133089633
BaseRepresentation
bin10101100010111…
…101101011010101
3221012012110000200
4111202331223111
51220020041221
655511531113
711646406065
oct2542755325
9835173020
10361487061
11176060641
12a1089a99
1359b78890
143601b3a5
1521b07426
hex158bdad5

361487061 has 12 divisors (see below), whose sum is σ = 562313388. Its totient is φ = 222453504.

The previous prime is 361487053. The next prime is 361487081. The reversal of 361487061 is 160784163.

It can be written as a sum of positive squares in 2 ways, for example, as 37271025 + 324216036 = 6105^2 + 18006^2 .

It is not a de Polignac number, because 361487061 - 23 = 361487053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361487051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1544700 + ... + 1544933.

It is an arithmetic number, because the mean of its divisors is an integer number (46859449).

Almost surely, 2361487061 is an apocalyptic number.

It is an amenable number.

361487061 is a deficient number, since it is larger than the sum of its proper divisors (200826327).

361487061 is a wasteful number, since it uses less digits than its factorization.

361487061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089652 (or 3089649 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 361487061 is about 19012.8130743454. The cubic root of 361487061 is about 712.3568185048.

The spelling of 361487061 in words is "three hundred sixty-one million, four hundred eighty-seven thousand, sixty-one".

Divisors: 1 3 9 13 39 117 3089633 9268899 27806697 40165229 120495687 361487061