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3123987106 = 219594573049
BaseRepresentation
bin1011101000110100…
…0100001010100010
322001201022222200011
42322031010022202
522344220041411
61233553515134
7140262311062
oct27215041242
98051288604
103123987106
111363455829
12732272aaa
133aa2a61a6
14218c7d3a2
151343d5c21
hexba3442a2

3123987106 has 32 divisors (see below), whose sum is σ = 5028840000. Its totient is φ = 1451043072.

The previous prime is 3123987103. The next prime is 3123987107. The reversal of 3123987106 is 6017893213.

It is not an unprimeable number, because it can be changed into a prime (3123987103) 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 15 ways as a sum of consecutive naturals, for example, 1023070 + ... + 1026118.

It is an arithmetic number, because the mean of its divisors is an integer number (157151250).

Almost surely, 23123987106 is an apocalyptic number.

3123987106 is a deficient number, since it is larger than the sum of its proper divisors (1904852894).

3123987106 is a wasteful number, since it uses less digits than its factorization.

3123987106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3123987106 is about 55892.6391039106. The cubic root of 3123987106 is about 1461.8508936360.

The spelling of 3123987106 in words is "three billion, one hundred twenty-three million, nine hundred eighty-seven thousand, one hundred six".

Divisors: 1 2 19 38 59 118 457 914 1121 2242 3049 6098 8683 17366 26963 53926 57931 115862 179891 359782 512297 1024594 1393393 2786786 3417929 6835858 26474467 52948934 82210187 164420374 1561993553 3123987106