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29981849710835 = 51131371074441693
BaseRepresentation
bin1101101000100101100011…
…00000000111000011110011
310221011020101122201112111002
412310102301200013003303
512412210312011221320
6143433245511312215
76213055120441241
oct664226140070363
9127136348645432
1029981849710835
11960a25a59a180
12344282497b66b
13139637903b289
147591b49db791
1536ed6b635675
hex1b44b18070f3

29981849710835 has 64 divisors (see below), whose sum is σ = 41998952853504. Its totient is φ = 20339396006400.

The previous prime is 29981849710823. The next prime is 29981849710951. The reversal of 29981849710835 is 53801794818992.

It is not a de Polignac number, because 29981849710835 - 24 = 29981849710819 is a prime.

It is a super-2 number, since 2×299818497108352 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4529249 + ... + 8970941.

It is an arithmetic number, because the mean of its divisors is an integer number (656233638336).

Almost surely, 229981849710835 is an apocalyptic number.

29981849710835 is a deficient number, since it is larger than the sum of its proper divisors (12017103142669).

29981849710835 is a wasteful number, since it uses less digits than its factorization.

29981849710835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441884.

The product of its (nonzero) digits is 313528320, while the sum is 74.

The spelling of 29981849710835 in words is "twenty-nine trillion, nine hundred eighty-one billion, eight hundred forty-nine million, seven hundred ten thousand, eight hundred thirty-five".

Divisors: 1 5 11 31 37 55 107 155 185 341 407 535 1147 1177 1705 2035 3317 3959 5735 5885 12617 16585 19795 36487 43549 63085 122729 182435 217745 613645 1350019 4441693 6750095 22208465 48858623 137692483 164342641 244293115 475261151 688462415 821713205 1514617313 1807769051 2376305755 5094621871 5227872661 7573086565 9038845255 14733095681 17584662587 25473109355 26139363305 56040840581 73665478405 87923312935 162064052491 193431288457 280204202905 545124540197 810320262455 967156442285 2725622700985 5996369942167 29981849710835