Search a number
-
+
30750805075 = 5219232814719
BaseRepresentation
bin11100101000111001…
…000000110001010011
32221101002001202022111
4130220321000301103
51000434201230300
622043212250151
72136014346634
oct345071006123
987332052274
1030750805075
1112050033aa1
125b62470957
132b90ab2163
1416ba04988b
15bee9d49ba
hex728e40c53

30750805075 has 24 divisors (see below), whose sum is σ = 41883033600. Its totient is φ = 22292566560.

The previous prime is 30750805061. The next prime is 30750805093. The reversal of 30750805075 is 57050805703.

It is not a de Polignac number, because 30750805075 - 227 = 30616587347 is a prime.

It is a super-2 number, since 2×307508050752 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1396435 + ... + 1418284.

It is an arithmetic number, because the mean of its divisors is an integer number (1745126400).

Almost surely, 230750805075 is an apocalyptic number.

30750805075 is a deficient number, since it is larger than the sum of its proper divisors (11132228525).

30750805075 is a wasteful number, since it uses less digits than its factorization.

30750805075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814771 (or 2814766 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 40.

The spelling of 30750805075 in words is "thirty billion, seven hundred fifty million, eight hundred five thousand, seventy-five".

Divisors: 1 5 19 23 25 95 115 437 475 575 2185 10925 2814719 14073595 53479661 64738537 70367975 267398305 323692685 1230032203 1336991525 1618463425 6150161015 30750805075