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68194454 = 245774611
BaseRepresentation
bin1000001000010…
…01000010010110
311202022122012112
410010021002112
5114424210304
610433351022
71455433436
oct404110226
9152278175
1068194454
1135548559
121aa08472
1311188a63
1490b22c6
155ec0b6e
hex4109096

68194454 has 8 divisors (see below), whose sum is σ = 102516888. Its totient is φ = 34022160.

The previous prime is 68194453. The next prime is 68194487. The reversal of 68194454 is 45449186.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68194453) 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, 36392 + ... + 38219.

It is an arithmetic number, because the mean of its divisors is an integer number (12814611).

Almost surely, 268194454 is an apocalyptic number.

68194454 is a deficient number, since it is larger than the sum of its proper divisors (34322434).

68194454 is a wasteful number, since it uses less digits than its factorization.

68194454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75070.

The product of its digits is 138240, while the sum is 41.

The square root of 68194454 is about 8257.9933397890. The cubic root of 68194454 is about 408.5542056853.

The spelling of 68194454 in words is "sixty-eight million, one hundred ninety-four thousand, four hundred fifty-four".

Divisors: 1 2 457 914 74611 149222 34097227 68194454