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30040050 = 2352474261
BaseRepresentation
bin111001010010…
…1111111110010
32002112012012110
41302211333302
530142240200
62551510150
7513223215
oct162457762
962465173
1030040050
1115a58597
12a088356
1362ba2a1
143dbd77c
152985b50
hex1ca5ff2

30040050 has 48 divisors (see below), whose sum is σ = 76102272. Its totient is φ = 7838400.

The previous prime is 30040013. The next prime is 30040057. The reversal of 30040050 is 5004003.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30040057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4920 + ... + 9180.

It is an arithmetic number, because the mean of its divisors is an integer number (1585464).

Almost surely, 230040050 is an apocalyptic number.

30040050 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 30040050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38051136).

30040050 is an abundant number, since it is smaller than the sum of its proper divisors (46062222).

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

30040050 is a wasteful number, since it uses less digits than its factorization.

30040050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 30040050 is about 5480.8804037308. The cubic root of 30040050 is about 310.8614609565.

Adding to 30040050 its reverse (5004003), we get a palindrome (35044053).

The spelling of 30040050 in words is "thirty million, forty thousand, fifty", and thus it is an eban number.

Divisors: 1 2 3 5 6 10 15 25 30 47 50 75 94 141 150 235 282 470 705 1175 1410 2350 3525 4261 7050 8522 12783 21305 25566 42610 63915 106525 127830 200267 213050 319575 400534 600801 639150 1001335 1201602 2002670 3004005 5006675 6008010 10013350 15020025 30040050