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68307554 = 274879111
BaseRepresentation
bin1000001001001…
…00101001100010
311202112101100102
410010210221202
5114441320204
610440022402
71456414250
oct404445142
9152471312
1068307554
1135615527
121aa61a02
13111c8393
1491015d0
155ee441e
hex4124a62

68307554 has 8 divisors (see below), whose sum is σ = 117098688. Its totient is φ = 29274660.

The previous prime is 68307529. The next prime is 68307559. The reversal of 68307554 is 45570386.

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

It is not an unprimeable number, because it can be changed into a prime (68307559) 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, 2439542 + ... + 2439569.

It is an arithmetic number, because the mean of its divisors is an integer number (14637336).

Almost surely, 268307554 is an apocalyptic number.

68307554 is a deficient number, since it is larger than the sum of its proper divisors (48791134).

68307554 is a wasteful number, since it uses less digits than its factorization.

68307554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879120.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 68307554 is about 8264.8384134235. The cubic root of 68307554 is about 408.7799423180.

The spelling of 68307554 in words is "sixty-eight million, three hundred seven thousand, five hundred fifty-four".

Divisors: 1 2 7 14 4879111 9758222 34153777 68307554