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68353248 = 2531136301
BaseRepresentation
bin1000001001011…
…11110011100000
311202121201000210
410010233303200
5114444300443
610441014120
71456664415
oct404576340
9152551023
1068353248
1135646897
121aa84340
1311213112
14911410c
156002c33
hex412fce0

68353248 has 48 divisors (see below), whose sum is σ = 181043856. Its totient is φ = 22579200.

The previous prime is 68353231. The next prime is 68353289. The reversal of 68353248 is 84235386.

It is a tau number, because it is divible by the number of its divisors (48).

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, 7698 + ... + 13998.

It is an arithmetic number, because the mean of its divisors is an integer number (3771747).

Almost surely, 268353248 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 68353248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90521928).

68353248 is an abundant number, since it is smaller than the sum of its proper divisors (112690608).

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

68353248 is a wasteful number, since it uses less digits than its factorization.

68353248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427 (or 6419 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 68353248 is about 8267.6023126418. The cubic root of 68353248 is about 408.8710724401.

The spelling of 68353248 in words is "sixty-eight million, three hundred fifty-three thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 113 226 339 452 678 904 1356 1808 2712 3616 5424 6301 10848 12602 18903 25204 37806 50408 75612 100816 151224 201632 302448 604896 712013 1424026 2136039 2848052 4272078 5696104 8544156 11392208 17088312 22784416 34176624 68353248