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68069097584 = 2447143962903
BaseRepresentation
bin111111011001001111…
…000000000001110000
320111200212000102201022
4333121033000001300
52103401142110314
651134232555012
74626546532355
oct773117000160
9214625012638
1068069097584
112696025a554
1211238252a68
13655a3b4147
14341a3c662c
151b85d4b78e
hexfd93c0070

68069097584 has 40 divisors (see below), whose sum is σ = 134785658880. Its totient is φ = 33286731968.

The previous prime is 68069097581. The next prime is 68069097587. The reversal of 68069097584 is 48579096086.

It is an interprime number because it is at equal distance from previous prime (68069097581) and next prime (68069097587).

It is a super-2 number, since 2×680690975842 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68069097581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050677 + ... + 1113579.

It is an arithmetic number, because the mean of its divisors is an integer number (3369641472).

Almost surely, 268069097584 is an apocalyptic number.

It is an amenable number.

68069097584 is a deficient number, since it is larger than the sum of its proper divisors (66716561296).

68069097584 is a wasteful number, since it uses less digits than its factorization.

68069097584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64397 (or 64391 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 68069097584 in words is "sixty-eight billion, sixty-nine million, ninety-seven thousand, five hundred eighty-four".

Divisors: 1 2 4 8 16 47 94 188 376 752 1439 2878 5756 11512 23024 62903 67633 125806 135266 251612 270532 503224 541064 1006448 1082128 2956441 5912882 11825764 23651528 47303056 90517417 181034834 362069668 724139336 1448278672 4254318599 8508637198 17017274396 34034548792 68069097584