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68195893 = 433175003
BaseRepresentation
bin1000001000010…
…01011000110101
311202022201011211
410010021120311
5114424232033
610433401421
71455440563
oct404113065
9152281154
1068195893
1135549647
121aa09271
13111895cc
1490b2a33
155ec12cd
hex4109635

68195893 has 8 divisors (see below), whose sum is σ = 70015968. Its totient is φ = 66386544.

The previous prime is 68195887. The next prime is 68195927. The reversal of 68195893 is 39859186.

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

It is a cyclic number.

It is not a de Polignac number, because 68195893 - 25 = 68195861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68195873) 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, 11130 + ... + 16132.

It is an arithmetic number, because the mean of its divisors is an integer number (8751996).

Almost surely, 268195893 is an apocalyptic number.

It is an amenable number.

68195893 is a deficient number, since it is larger than the sum of its proper divisors (1820075).

68195893 is a wasteful number, since it uses less digits than its factorization.

68195893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363.

The product of its digits is 466560, while the sum is 49.

The square root of 68195893 is about 8258.0804670335. The cubic root of 68195893 is about 408.5570793568.

The spelling of 68195893 in words is "sixty-eight million, one hundred ninety-five thousand, eight hundred ninety-three".

Divisors: 1 43 317 5003 13631 215129 1585951 68195893