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361283942761 = 7217250512
BaseRepresentation
bin1010100000111100011…
…00110111100101101001
31021112112111110212211221
411100132030313211221
521404402142132021
6433545504422041
735046644562400
oct5203614674551
91245474425757
10361283942761
1112a246404585
125a029317921
13280b8591131
14136b4336637
1595e79ce241
hex541e337969

361283942761 has 27 divisors (see below), whose sum is σ = 446533409847. Its totient is φ = 291398251200.

The previous prime is 361283942759. The next prime is 361283942867. The reversal of 361283942761 is 167249382163.

It is a happy number.

The square root of 361283942761 is 601069.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 281276426025 + 80007516736 = 530355^2 + 282856^2 .

It is not a de Polignac number, because 361283942761 - 21 = 361283942759 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 361283942699 and 361283942708.

It is not an unprimeable number, because it can be changed into a prime (361283942731) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 71524686 + ... + 71529736.

Almost surely, 2361283942761 is an apocalyptic number.

361283942761 is the 601069-th square number.

361283942761 is the 300535-th centered octagonal number.

It is an amenable number.

361283942761 is a deficient number, since it is larger than the sum of its proper divisors (85249467086).

361283942761 is an frugal number, since it uses more digits than its factorization.

361283942761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150 (or 5075 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The spelling of 361283942761 in words is "three hundred sixty-one billion, two hundred eighty-three million, nine hundred forty-two thousand, seven hundred sixty-one".

Divisors: 1 7 17 49 119 289 833 2023 5051 14161 35357 85867 247499 601069 1459739 4207483 10218173 25512601 71527211 178588207 433714217 1250117449 3035999519 7373141689 21251996633 51611991823 361283942761