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61108041771 = 327969968917
BaseRepresentation
bin111000111010010100…
…101011100000101011
312211201201120011022100
4320322110223200223
52000122124314041
644023405224443
74262212533120
oct707224534053
9184651504270
1061108041771
1123a08995267
12ba14b62123
1359bb1952ca
142d59ac6747
1518c9b766b6
hexe3a52b82b

61108041771 has 12 divisors (see below), whose sum is σ = 100876767472. Its totient is φ = 34918880976.

The previous prime is 61108041769. The next prime is 61108041791. The reversal of 61108041771 is 17714080116.

61108041771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61108041771 - 21 = 61108041769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61108041721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484984396 + ... + 484984521.

Almost surely, 261108041771 is an apocalyptic number.

61108041771 is a deficient number, since it is larger than the sum of its proper divisors (39768725701).

61108041771 is a wasteful number, since it uses less digits than its factorization.

61108041771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969968930 (or 969968927 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The spelling of 61108041771 in words is "sixty-one billion, one hundred eight million, forty-one thousand, seven hundred seventy-one".

Divisors: 1 3 7 9 21 63 969968917 2909906751 6789782419 8729720253 20369347257 61108041771