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68029438452297 = 3723140847698659
BaseRepresentation
bin11110111011111010101101…
…00000110110001001001001
322220212112212112102020120120
433131331112200312021021
532404043242220433142
6400404143110413453
720220651621605340
oct1735752640661111
9286775775366516
1068029438452297
111a749139534263
127768689361289
132bc61c13b309a
1412b28dca06b57
157ce9061bc7ec
hex3ddf56836249

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".

Divisors: 1 3 7 21 23 69 161 483 140847698659 422543095977 985933890613 2957801671839 3239497069157 9718491207471 22676479484099 68029438452297