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68467072 = 271573407
BaseRepresentation
bin1000001010010…
…11100110000000
311202211111011111
410011023212000
5120011421242
610443253104
71460650312
oct405134600
9152744144
1068467072
1135714363
121ab1a194
1311252b7b
1491437b2
156026817
hex414b980

68467072 has 32 divisors (see below), whose sum is σ = 137308320. Its totient is φ = 34005504.

The previous prime is 68467031. The next prime is 68467073. The reversal of 68467072 is 27076486.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68467073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18393 + ... + 21799.

It is an arithmetic number, because the mean of its divisors is an integer number (4290885).

Almost surely, 268467072 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 68467072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68654160).

68467072 is an abundant number, since it is smaller than the sum of its proper divisors (68841248).

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

68467072 is a wasteful number, since it uses less digits than its factorization.

68467072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 68467072 is about 8274.4831862782. The cubic root of 68467072 is about 409.0979016119.

The spelling of 68467072 in words is "sixty-eight million, four hundred sixty-seven thousand, seventy-two".

Divisors: 1 2 4 8 16 32 64 128 157 314 628 1256 2512 3407 5024 6814 10048 13628 20096 27256 54512 109024 218048 436096 534899 1069798 2139596 4279192 8558384 17116768 34233536 68467072