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68045588 = 22134872687
BaseRepresentation
bin1000000111001…
…00101100010100
311202001001222222
410003210230110
5114404424323
610430241512
71454243432
oct403445424
9152031888
1068045588
1135456726
121a956298
1311136080
149073d52
155e919c8
hex40e4b14

68045588 has 24 divisors (see below), whose sum is σ = 128550912. Its totient is φ = 31329504.

The previous prime is 68045567. The next prime is 68045591. The reversal of 68045588 is 88554086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23981 + ... + 26667.

It is an arithmetic number, because the mean of its divisors is an integer number (5356288).

Almost surely, 268045588 is an apocalyptic number.

It is an amenable number.

68045588 is a deficient number, since it is larger than the sum of its proper divisors (60505324).

68045588 is a wasteful number, since it uses less digits than its factorization.

68045588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 68045588 is about 8248.9749666246. The cubic root of 68045588 is about 408.2567028026.

The spelling of 68045588 in words is "sixty-eight million, forty-five thousand, five hundred eighty-eight".

Divisors: 1 2 4 13 26 52 487 974 1948 2687 5374 6331 10748 12662 25324 34931 69862 139724 1308569 2617138 5234276 17011397 34022794 68045588