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3106700881 = 11677266053
BaseRepresentation
bin1011100100101100…
…0111111001010001
322000111210202102121
42321023013321101
522330303412011
61232135214241
7136662343654
oct27113077121
98014722377
103106700881
111354719399
12728517381
133a683305b
1421685d89b
15132b1de71
hexb92c7e51

3106700881 has 4 divisors (see below), whose sum is σ = 3106978612. Its totient is φ = 3106423152.

The previous prime is 3106700879. The next prime is 3106700897. The reversal of 3106700881 is 1880076013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1880076013 = 10631768651.

It can be written as a sum of positive squares in 2 ways, for example, as 2478446656 + 628254225 = 49784^2 + 25065^2 .

It is a cyclic number.

It is not a de Polignac number, because 3106700881 - 21 = 3106700879 is a prime.

It is a super-2 number, since 2×31067008812 = 19303180728012352322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3106700801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121350 + ... + 144703.

It is an arithmetic number, because the mean of its divisors is an integer number (776744653).

Almost surely, 23106700881 is an apocalyptic number.

It is an amenable number.

3106700881 is a deficient number, since it is larger than the sum of its proper divisors (277731).

3106700881 is a wasteful number, since it uses less digits than its factorization.

3106700881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277730.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 3106700881 is about 55737.7868326327. The cubic root of 3106700881 is about 1459.1495768301.

Adding to 3106700881 its reverse (1880076013), we get a palindrome (4986776894).

The spelling of 3106700881 in words is "three billion, one hundred six million, seven hundred thousand, eight hundred eighty-one".

Divisors: 1 11677 266053 3106700881