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3050029890 = 23456161729
BaseRepresentation
bin1011010111001011…
…1100001101000010
321212120011120110000
42311302330031002
522221301424030
61222352420430
7135403553265
oct26562741502
97776146400
103050029890
111325731666
12711547716
13397b8041b
1420d10acdc
1512cb77860
hexb5cbc342

3050029890 has 80 divisors (see below), whose sum is σ = 8335772280. Its totient is φ = 799994880.

The previous prime is 3050029889. The next prime is 3050029897. The reversal of 3050029890 is 989200503.

3050029890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2512114641 + 537915249 = 50121^2 + 23193^2 .

It is not an unprimeable number, because it can be changed into a prime (3050029897) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18546 + ... + 80274.

Almost surely, 23050029890 is an apocalyptic number.

3050029890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3050029890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4167886140).

3050029890 is an abundant number, since it is smaller than the sum of its proper divisors (5285742390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3050029890 is a wasteful number, since it uses less digits than its factorization.

3050029890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61809 (or 61800 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 3050029890 is about 55227.0756966182. The cubic root of 3050029890 is about 1450.2226990490. Note that the first 3 decimals are identical.

The spelling of 3050029890 in words is "three billion, fifty million, twenty-nine thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 61 81 90 122 135 162 183 270 305 366 405 549 610 810 915 1098 1647 1830 2745 3294 4941 5490 8235 9882 16470 24705 49410 61729 123458 185187 308645 370374 555561 617290 925935 1111122 1666683 1851870 2777805 3333366 3765469 5000049 5555610 7530938 8333415 10000098 11296407 16666830 18827345 22592814 25000245 33889221 37654690 50000490 56482035 67778442 101667663 112964070 169446105 203335326 305002989 338892210 508338315 610005978 1016676630 1525014945 3050029890