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68007673 = 181607619
BaseRepresentation
bin1000000110110…
…11011011111001
311201222010222201
410003123123321
5114402221143
610425350201
71454025046
oct403333371
9151863881
1068007673
1135430198
121a938361
1311121a36
1490641cd
155e8564d
hex40db6f9

68007673 has 8 divisors (see below), whose sum is σ = 68606720. Its totient is φ = 67411440.

The previous prime is 68007661. The next prime is 68007677. The reversal of 68007673 is 37670086.

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 68007673 - 29 = 68007161 is a prime.

It is a Duffinian number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 68007673 = 2223 + 3853 = 2413 + 3783.

It is not an unprimeable number, because it can be changed into a prime (68007677) 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, 109558 + ... + 110176.

It is an arithmetic number, because the mean of its divisors is an integer number (8575840).

Almost surely, 268007673 is an apocalyptic number.

It is an amenable number.

68007673 is a deficient number, since it is larger than the sum of its proper divisors (599047).

68007673 is a wasteful number, since it uses less digits than its factorization.

68007673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 68007673 is about 8246.6764820745. The cubic root of 68007673 is about 408.1808618396.

The spelling of 68007673 in words is "sixty-eight million, seven thousand, six hundred seventy-three".

Divisors: 1 181 607 619 109867 112039 375733 68007673