Base | Representation |
---|---|
bin | 11110111011111010101101… |
… | …00000110110001001001001 |
3 | 22220212112212112102020120120 |
4 | 33131331112200312021021 |
5 | 32404043242220433142 |
6 | 400404143110413453 |
7 | 20220651621605340 |
oct | 1735752640661111 |
9 | 286775775366516 |
10 | 68029438452297 |
11 | 1a749139534263 |
12 | 7768689361289 |
13 | 2bc61c13b309a |
14 | 12b28dca06b57 |
15 | 7ce9061bc7ec |
hex | 3ddf56836249 |
68029438452297 has 16 divisors (see below), whose sum is σ = 108171032570880. Its totient is φ = 37183792445712.
The previous prime is 68029438452193. The next prime is 68029438452341. The reversal of 68029438452297 is 79225483492086.
It is not a de Polignac number, because 68029438452297 - 214 = 68029438435913 is a prime.
It is a super-2 number, since 2×680294384522972 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (69).
It is not an unprimeable number, because it can be changed into a prime (68029438492297) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70423848847 + ... + 70423849812.
It is an arithmetic number, because the mean of its divisors is an integer number (6760689535680).
Almost surely, 268029438452297 is an apocalyptic number.
It is an amenable number.
68029438452297 is a deficient number, since it is larger than the sum of its proper divisors (40141594118583).
68029438452297 is a wasteful number, since it uses less digits than its factorization.
68029438452297 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 140847698692.
The product of its (nonzero) digits is 418037760, while the sum is 69.
The spelling of 68029438452297 in words is "sixty-eight trillion, twenty-nine billion, four hundred thirty-eight million, four hundred fifty-two thousand, two hundred ninety-seven".
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