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68043361 = 235355819
BaseRepresentation
bin1000000111001…
…00001001100001
311202000221221111
410003210021201
5114404341421
610430223321
71454234101
oct403441141
9152027844
1068043361
1135454a91
121a954b41
1311135059
149073201
155e90ee1
hex40e4261

68043361 has 8 divisors (see below), whose sum is σ = 72342720. Its totient is φ = 63855792.

The previous prime is 68043341. The next prime is 68043413. The reversal of 68043361 is 16334086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68043361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68043331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26691 + ... + 29128.

It is an arithmetic number, because the mean of its divisors is an integer number (9042840).

Almost surely, 268043361 is an apocalyptic number.

It is an amenable number.

68043361 is a deficient number, since it is larger than the sum of its proper divisors (4299359).

68043361 is a wasteful number, since it uses less digits than its factorization.

68043361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55895.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 68043361 is about 8248.8399790516. The cubic root of 68043361 is about 408.2522489375.

The spelling of 68043361 in words is "sixty-eight million, forty-three thousand, three hundred sixty-one".

Divisors: 1 23 53 1219 55819 1283837 2958407 68043361