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30500509450 = 252788377383
BaseRepresentation
bin11100011001111110…
…001101011100001010
32220201122002102021011
4130121332031130022
5444431112300300
622002311434134
72126555024035
oct343176153412
986648072234
1030500509450
1111a31819204
125ab268594a
132b50c98038
141694ad401c
15bd7a42eba
hex719f8d70a

30500509450 has 24 divisors (see below), whose sum is σ = 56738877408. Its totient is φ = 12198498480.

The previous prime is 30500509343. The next prime is 30500509451. The reversal of 30500509450 is 5490500503.

It is not an unprimeable number, because it can be changed into a prime (30500509451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355459 + ... + 432841.

It is an arithmetic number, because the mean of its divisors is an integer number (2364119892).

Almost surely, 230500509450 is an apocalyptic number.

30500509450 is a deficient number, since it is larger than the sum of its proper divisors (26238367958).

30500509450 is a wasteful number, since it uses less digits than its factorization.

30500509450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85278 (or 85273 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 30500509450 in words is "thirty billion, five hundred million, five hundred nine thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 7883 15766 39415 77383 78830 154766 197075 386915 394150 773830 1934575 3869150 610010189 1220020378 3050050945 6100101890 15250254725 30500509450