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68335072 = 2513164267
BaseRepresentation
bin1000001001010…
…11010111100000
311202120210002121
410010223113200
5114443210242
610440354024
71456560421
oct404532740
9152523077
1068335072
1135634173
121aa75914
1311207a70
14910b648
155eec667
hex412b5e0

68335072 has 24 divisors (see below), whose sum is σ = 144884376. Its totient is φ = 31539072.

The previous prime is 68335061. The next prime is 68335103. The reversal of 68335072 is 27053386.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 81718 + ... + 82549.

It is an arithmetic number, because the mean of its divisors is an integer number (6036849).

Almost surely, 268335072 is an apocalyptic number.

It is an amenable number.

68335072 is an abundant number, since it is smaller than the sum of its proper divisors (76549304).

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

68335072 is a wasteful number, since it uses less digits than its factorization.

68335072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164290 (or 164282 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 68335072 is about 8266.5030091327. The cubic root of 68335072 is about 408.8348278838.

The spelling of 68335072 in words is "sixty-eight million, three hundred thirty-five thousand, seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 164267 328534 657068 1314136 2135471 2628272 4270942 5256544 8541884 17083768 34167536 68335072