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3105143828 = 221315925847
BaseRepresentation
bin1011100100010100…
…1011110000010100
322000101212122112222
42321011023300110
522324404100303
61232042001512
7136643200313
oct27105136024
98011778488
103105143828
111353855576
12727aa6298
133a6409417
1421657627a
15132912938
hexb914bc14

3105143828 has 12 divisors (see below), whose sum is σ = 5475483552. Its totient is φ = 1540719960.

The previous prime is 3105143827. The next prime is 3105143843. The reversal of 3105143828 is 8283415013.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3105143827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2962400 + ... + 2963447.

It is an arithmetic number, because the mean of its divisors is an integer number (456290296).

Almost surely, 23105143828 is an apocalyptic number.

It is an amenable number.

3105143828 is a deficient number, since it is larger than the sum of its proper divisors (2370339724).

3105143828 is a wasteful number, since it uses less digits than its factorization.

3105143828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925982 (or 5925980 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 3105143828 is about 55723.8174212787. The cubic root of 3105143828 is about 1458.9057648268.

The spelling of 3105143828 in words is "three billion, one hundred five million, one hundred forty-three thousand, eight hundred twenty-eight".

Divisors: 1 2 4 131 262 524 5925847 11851694 23703388 776285957 1552571914 3105143828