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68383551 = 331735307
BaseRepresentation
bin1000001001101…
…11001100111111
311202200020121010
410010313030333
5120001233201
610441410303
71460151645
oct404671477
9152606533
1068383551
1135667635
121aa99993
1311223b52
149121195
15600bbd6
hex413733f

68383551 has 8 divisors (see below), whose sum is σ = 94119424. Its totient is φ = 44118360.

The previous prime is 68383541. The next prime is 68383559. The reversal of 68383551 is 15538386.

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

It is not a de Polignac number, because 68383551 - 25 = 68383519 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 (68383559) 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, 367561 + ... + 367746.

It is an arithmetic number, because the mean of its divisors is an integer number (11764928).

Almost surely, 268383551 is an apocalyptic number.

68383551 is a deficient number, since it is larger than the sum of its proper divisors (25735873).

68383551 is a wasteful number, since it uses less digits than its factorization.

68383551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735341.

The product of its digits is 86400, while the sum is 39.

The square root of 68383551 is about 8269.4347448904. The cubic root of 68383551 is about 408.9314850270.

The spelling of 68383551 in words is "sixty-eight million, three hundred eighty-three thousand, five hundred fifty-one".

Divisors: 1 3 31 93 735307 2205921 22794517 68383551