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29691198405 = 345112679043
BaseRepresentation
bin11011101001101110…
…111011101111000101
32211122020020011020000
4123221232323233011
5441301421322110
621350121231513
72100530010441
oct335156735705
984566204200
1029691198405
11116569a8900
125907632599
132a5240506b
141619423821
15b8b97c1c0
hex6e9bbbbc5

29691198405 has 120 divisors (see below), whose sum is σ = 59382397536. Its totient is φ = 14179302720.

The previous prime is 29691198389. The next prime is 29691198431. The reversal of 29691198405 is 50489119692.

29691198405 is an admirable number.

It is not a de Polignac number, because 29691198405 - 24 = 29691198389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3278814 + ... + 3287856.

Almost surely, 229691198405 is an apocalyptic number.

It is an amenable number.

29691198405 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

29691198405 is a wasteful number, since it uses less digits than its factorization.

29691198405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149 (or 9129 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 29691198405 in words is "twenty-nine billion, six hundred ninety-one million, one hundred ninety-eight thousand, four hundred five".

Divisors: 1 3 5 9 11 15 27 33 45 55 67 81 99 121 135 165 201 297 335 363 405 495 603 605 737 891 1005 1089 1485 1809 1815 2211 3015 3267 3685 4455 5427 5445 6633 8107 9043 9045 9801 11055 16335 19899 24321 27129 27135 33165 40535 45215 49005 59697 72963 81387 99473 99495 121605 135645 218889 244161 298419 298485 364815 406935 497365 605881 656667 732483 895257 1094203 1094445 1220805 1492095 1817643 2685771 3029405 3282609 3283335 3662415 4476285 5452929 5471015 6664691 8057313 9088215 9847827 13428855 16358787 16413045 19994073 27264645 29543481 33323455 40286565 49076361 49239135 59982219 73311601 81793935 88630443 99970365 147717405 179946657 219934803 245381805 299911095 366558005 443152215 539839971 659804409 899733285 1099674015 1979413227 2699199855 3299022045 5938239681 9897066135 29691198405