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68441583 = 3722331653
BaseRepresentation
bin1000001010001…
…01010111101111
311202210012012110
410011011113233
5120010112313
610442535103
71460513100
oct405052757
9152705173
1068441583
11356a71a1
121ab07493
13112443a2
1491383a7
15601dec3
hex41455ef

68441583 has 48 divisors (see below), whose sum is σ = 114518016. Its totient is φ = 36146880.

The previous prime is 68441579. The next prime is 68441617. The reversal of 68441583 is 38514486.

It is not a de Polignac number, because 68441583 - 22 = 68441579 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68441533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104485 + ... + 105137.

It is an arithmetic number, because the mean of its divisors is an integer number (2385792).

Almost surely, 268441583 is an apocalyptic number.

68441583 is a deficient number, since it is larger than the sum of its proper divisors (46076433).

68441583 is a wasteful number, since it uses less digits than its factorization.

68441583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 717 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 68441583 is about 8272.9428258631. The cubic root of 68441583 is about 409.0471288323.

The spelling of 68441583 in words is "sixty-eight million, four hundred forty-one thousand, five hundred eighty-three".

Divisors: 1 3 7 21 23 31 49 69 93 147 161 217 483 651 653 713 1127 1519 1959 2139 3381 4557 4571 4991 13713 14973 15019 20243 31997 34937 45057 60729 95991 104811 105133 141701 315399 425103 465589 735931 991907 1396767 2207793 2975721 3259123 9777369 22813861 68441583