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68089504 = 2571971543
BaseRepresentation
bin1000000111011…
…11011010100000
311202010022020111
410003233122200
5114412331004
610431221104
71454515450
oct403573240
9152108214
1068089504
113548671a
121a977794
1311150062
149085d60
155e9ea04
hex40ef6a0

68089504 has 48 divisors (see below), whose sum is σ = 154078848. Its totient is φ = 29014272.

The previous prime is 68089493. The next prime is 68089519. The reversal of 68089504 is 40598086.

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, 43357 + ... + 44899.

It is an arithmetic number, because the mean of its divisors is an integer number (3209976).

Almost surely, 268089504 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 68089504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77039424).

68089504 is an abundant number, since it is smaller than the sum of its proper divisors (85989344).

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

68089504 is a wasteful number, since it uses less digits than its factorization.

68089504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 68089504 is about 8251.6364437607. The cubic root of 68089504 is about 408.3445122952.

The spelling of 68089504 in words is "sixty-eight million, eighty-nine thousand, five hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 197 224 394 788 1379 1543 1576 2758 3086 3152 5516 6172 6304 10801 11032 12344 21602 22064 24688 43204 44128 49376 86408 172816 303971 345632 607942 1215884 2127797 2431768 4255594 4863536 8511188 9727072 17022376 34044752 68089504