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68421754 = 247727891
BaseRepresentation
bin1000001010000…
…00100001111010
311202202012000001
410011000201322
5120003444004
610442303214
71460401222
oct405004172
9152665001
1068421754
1135693305
121aab7b0a
131123835b
149131082
1560181a4
hex414087a

68421754 has 8 divisors (see below), whose sum is σ = 104816448. Its totient is φ = 33482940.

The previous prime is 68421733. The next prime is 68421761. The reversal of 68421754 is 45712486.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363852 + ... + 364039.

It is an arithmetic number, because the mean of its divisors is an integer number (13102056).

Almost surely, 268421754 is an apocalyptic number.

68421754 is a deficient number, since it is larger than the sum of its proper divisors (36394694).

68421754 is a wasteful number, since it uses less digits than its factorization.

68421754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727940.

The product of its digits is 53760, while the sum is 37.

The square root of 68421754 is about 8271.7443142302. The cubic root of 68421754 is about 409.0076217636.

The spelling of 68421754 in words is "sixty-eight million, four hundred twenty-one thousand, seven hundred fifty-four".

Divisors: 1 2 47 94 727891 1455782 34210877 68421754