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68835771 = 3317149969
BaseRepresentation
bin1000001101001…
…01100110111011
311210112012221000
410012211212323
5120110221041
610455220043
71464044244
oct406454673
9153465830
1068835771
1135946374
121b077623
1311351934
1491dbccb
15609abb6
hex41a59bb

68835771 has 16 divisors (see below), whose sum is σ = 107978400. Its totient is φ = 43190784.

The previous prime is 68835751. The next prime is 68835791. The reversal of 68835771 is 17753886.

It is an interprime number because it is at equal distance from previous prime (68835751) and next prime (68835791).

It is not a de Polignac number, because 68835771 - 27 = 68835643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68835721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74526 + ... + 75443.

It is an arithmetic number, because the mean of its divisors is an integer number (6748650).

Almost surely, 268835771 is an apocalyptic number.

68835771 is a deficient number, since it is larger than the sum of its proper divisors (39142629).

68835771 is a wasteful number, since it uses less digits than its factorization.

68835771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149995 (or 149989 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 68835771 is about 8296.7325496246. The cubic root of 68835771 is about 409.8309257266.

The spelling of 68835771 in words is "sixty-eight million, eight hundred thirty-five thousand, seven hundred seventy-one".

Divisors: 1 3 9 17 27 51 153 459 149969 449907 1349721 2549473 4049163 7648419 22945257 68835771