Search a number
-
+
30302034312 = 23311557206069
BaseRepresentation
bin11100001110001001…
…000101100110001000
32220012210121211120010
4130032021011212020
5444024310044222
621530501431520
72121625020234
oct341611054610
986183554503
1030302034312
111193a787970
125a5810b5a0
132b1bb25b24
1416765cb5c4
15bc53da80c
hex70e245988

30302034312 has 64 divisors (see below), whose sum is σ = 82790683200. Its totient is φ = 9165904640.

The previous prime is 30302034311. The next prime is 30302034331. The reversal of 30302034312 is 21343020303.

It is not an unprimeable number, because it can be changed into a prime (30302034311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44014 + ... + 250082.

It is an arithmetic number, because the mean of its divisors is an integer number (1293604425).

Almost surely, 230302034312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30302034312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41395341600).

30302034312 is an abundant number, since it is smaller than the sum of its proper divisors (52488648888).

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

30302034312 is a wasteful number, since it uses less digits than its factorization.

30302034312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206646 (or 206642 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30302034312 its reverse (21343020303), we get a palindrome (51645054615).

The spelling of 30302034312 in words is "thirty billion, three hundred two million, thirty-four thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 557 1114 1671 2228 3342 4456 6127 6684 12254 13368 18381 24508 36762 49016 73524 147048 206069 412138 618207 824276 1236414 1648552 2266759 2472828 4533518 4945656 6800277 9067036 13600554 18134072 27201108 54402216 114780433 229560866 344341299 459121732 688682598 918243464 1262584763 1377365196 2525169526 2754730392 3787754289 5050339052 7575508578 10100678104 15151017156 30302034312