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68106544 = 24112127277
BaseRepresentation
bin1000000111100…
…11100100110000
311202011011121121
410003303210300
5114413402134
610431432024
71454616232
oct403634460
9152134547
1068106544
1135498500
121a985614
1311157a3c
14908c252
155ea4ab4
hex40f3930

68106544 has 60 divisors (see below), whose sum is σ = 146712832. Its totient is φ = 30602880.

The previous prime is 68106527. The next prime is 68106547. The reversal of 68106544 is 44560186.

It is not an unprimeable number, because it can be changed into a prime (68106547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245734 + ... + 246010.

Almost surely, 268106544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68106544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73356416).

68106544 is an abundant number, since it is smaller than the sum of its proper divisors (78606288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68106544 is a wasteful number, since it uses less digits than its factorization.

68106544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 68106544 is about 8252.6689016342. The cubic root of 68106544 is about 408.3785733947.

The spelling of 68106544 in words is "sixty-eight million, one hundred six thousand, five hundred forty-four".

Divisors: 1 2 4 8 11 16 22 44 88 121 127 176 242 254 277 484 508 554 968 1016 1108 1397 1936 2032 2216 2794 3047 4432 5588 6094 11176 12188 15367 22352 24376 30734 33517 35179 48752 61468 67034 70358 122936 134068 140716 245872 268136 281432 386969 536272 562864 773938 1547876 3095752 4256659 6191504 8513318 17026636 34053272 68106544