Search a number
-
+
30053030250 = 235340070707
BaseRepresentation
bin11011111111010011…
…001101100101101010
32212120110002010012110
4123333103031211222
5443022033432000
621450044423150
72112512353665
oct337723154552
985513063173
1030053030250
1111822174491
1259a8847ab6
132aac371849
1416514d06dc
15bad601850
hex6ff4cd96a

30053030250 has 32 divisors (see below), whose sum is σ = 75012365376. Its totient is φ = 8014141200.

The previous prime is 30053030243. The next prime is 30053030269. The reversal of 30053030250 is 5203035003.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20034604 + ... + 20036103.

It is an arithmetic number, because the mean of its divisors is an integer number (2344136418).

Almost surely, 230053030250 is an apocalyptic number.

30053030250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30053030250 is an abundant number, since it is smaller than the sum of its proper divisors (44959335126).

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

30053030250 is a wasteful number, since it uses less digits than its factorization.

30053030250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40070727 (or 40070717 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 21.

Adding to 30053030250 its reverse (5203035003), we get a palindrome (35256065253).

The spelling of 30053030250 in words is "thirty billion, fifty-three million, thirty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 250 375 750 40070707 80141414 120212121 200353535 240424242 400707070 601060605 1001767675 1202121210 2003535350 3005303025 5008838375 6010606050 10017676750 15026515125 30053030250