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830739279601 = 74112192892
BaseRepresentation
bin11000001011010111110…
…10110110111011110001
32221102021122111221022201
430011223322312323301
5102102323223421401
61433345241503201
7114006331240000
oct14055372667361
92842248457281
10830739279601
112a0350736500
12115004aa1b01
136045255480a
142c2caa50c37
1516921c9bb01
hexc16beb6ef1

830739279601 has 135 divisors (see below), whose sum is σ = 1137041869803. Its totient is φ = 606368790720.

The previous prime is 830739279569. The next prime is 830739279611. The reversal of 830739279601 is 106972937038.

It is a happy number.

The square root of 830739279601 is 911449.

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., 159519561201 + 671219718400 = 399399^2 + 819280^2 .

It is not a de Polignac number, because 830739279601 - 25 = 830739279569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (830739279611) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 9334149165 + ... + 9334149253.

Almost surely, 2830739279601 is an apocalyptic number.

830739279601 is the 911449-th square number.

830739279601 is the 455725-th centered octagonal number.

It is an amenable number.

830739279601 is a deficient number, since it is larger than the sum of its proper divisors (306302590202).

830739279601 is an frugal number, since it uses more digits than its factorization.

830739279601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 830739279601 in words is "eight hundred thirty billion, seven hundred thirty-nine million, two hundred seventy-nine thousand, six hundred one".

Divisors: 1 7 11 19 49 77 89 121 133 209 343 361 539 623 847 931 979 1463 1691 2299 2401 2527 3773 3971 4361 5929 6517 6853 7921 10241 10769 11837 16093 17689 18601 26411 27797 30527 32129 41503 43681 45619 47971 55447 71687 75383 82859 87131 112651 123823 130207 150499 194579 204611 213689 224903 290521 305767 335797 353419 388129 501809 527681 580013 609917 788557 866761 911449 958441 1053493 1362053 1432277 1574321 1655489 2140369 2350579 2473933 2716903 2859481 3693767 3887609 4060091 4269419 5519899 6380143 6709087 7374451 9534371 10025939 11020247 11588423 14982583 17317531 18210379 19018321 20016367 25856369 27213263 29885933 31454291 44661001 46963609 51621157 70181573 77141729 81118961 104878081 121222717 127472653 140114569 190492841 209201531 220180037 328745263 345997201 361348099 491271011 567832727 848559019 892308571 980801983 1333449887 1541260259 2301216841 2421980407 3974829089 6246159997 6865613881 9334149209 10788821813 16953862849 43723119979 75521752691 118677039943 830739279601