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830137832161 = 11211327332
BaseRepresentation
bin11000001010010000001…
…00100001001011100001
32221100201201210020112121
430011020010201023201
5102100110241112121
61433205434424241
7113655406101631
oct14051004411341
92840651706477
10830137832161
112a007218a100
12114a77592081
1360387a70161
142c270c0c6c1
15168d9095141
hexc1481212e1

830137832161 has 27 divisors (see below), whose sum is σ = 921869591097. Its totient is φ = 746971800960.

The previous prime is 830137832141. The next prime is 830137832171. The reversal of 830137832161 is 161238731038.

The square root of 830137832161 is 911119.

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

It can be written as a sum of positive squares in 4 ways, for example, as 180391761 + 829957440400 = 13431^2 + 911020^2 .

It is not a de Polignac number, because 830137832161 - 211 = 830137830113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830137832141) 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 26 ways as a sum of consecutive naturals, for example, 1132520551 + ... + 1132521283.

Almost surely, 2830137832161 is an apocalyptic number.

830137832161 is the 911119-th square number.

830137832161 is the 455560-th centered octagonal number.

It is an amenable number.

830137832161 is a deficient number, since it is larger than the sum of its proper divisors (91731758936).

830137832161 is an frugal number, since it uses more digits than its factorization.

830137832161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 830137832161 in words is "eight hundred thirty billion, one hundred thirty-seven million, eight hundred thirty-two thousand, one hundred sixty-one".

Divisors: 1 11 113 121 733 1243 8063 12769 13673 82829 88693 140459 537289 911119 1545049 5910179 9359677 10022309 60713657 65011969 102956447 667850227 1132520917 6860643241 7346352497 75467075651 830137832161