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68033757 = 3112061629
BaseRepresentation
bin1000000111000…
…01110011011101
311202000110202210
410003201303131
5114404040012
610430111033
71454164101
oct403416335
9152013683
1068033757
1135448850
121a94b479
131113087c
14906d901
155e8d23c
hex40e1cdd

68033757 has 8 divisors (see below), whose sum is σ = 98958240. Its totient is φ = 41232560.

The previous prime is 68033687. The next prime is 68033759. The reversal of 68033757 is 75733086.

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 68033757 - 210 = 68032733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68033759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030782 + ... + 1030847.

It is an arithmetic number, because the mean of its divisors is an integer number (12369780).

Almost surely, 268033757 is an apocalyptic number.

It is an amenable number.

68033757 is a deficient number, since it is larger than the sum of its proper divisors (30924483).

68033757 is a wasteful number, since it uses less digits than its factorization.

68033757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061643.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 68033757 is about 8248.2578160482. The cubic root of 68033757 is about 408.2330404063.

The spelling of 68033757 in words is "sixty-eight million, thirty-three thousand, seven hundred fifty-seven".

Divisors: 1 3 11 33 2061629 6184887 22677919 68033757