Search a number
-
+
30358821724 = 22711179550657
BaseRepresentation
bin11100010001100001…
…101101101101011100
32220100202110221020121
4130101201231231130
5444133324243344
621540250524324
72123214504220
oct342141555534
986322427217
1030358821724
1111969844110
125a731366a4
132b2a81974a
14167dd70780
15bca3a6684
hex71186db5c

30358821724 has 48 divisors (see below), whose sum is σ = 66607591680. Its totient is φ = 11762012160.

The previous prime is 30358821683. The next prime is 30358821749. The reversal of 30358821724 is 42712885303.

It is a super-2 number, since 2×303588217242 (a number of 22 digits) contains 22 as substring.

It is a congruent 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, 220197 + ... + 330460.

It is an arithmetic number, because the mean of its divisors is an integer number (1387658160).

Almost surely, 230358821724 is an apocalyptic number.

It is an amenable number.

30358821724 is an abundant number, since it is smaller than the sum of its proper divisors (36248769956).

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

30358821724 is a wasteful number, since it uses less digits than its factorization.

30358821724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550858 (or 550856 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 30358821724 in words is "thirty billion, three hundred fifty-eight million, eight hundred twenty-one thousand, seven hundred twenty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 179 308 358 716 1253 1969 2506 3938 5012 7876 13783 27566 55132 550657 1101314 2202628 3854599 6057227 7709198 12114454 15418396 24228908 42400589 84801178 98567603 169602356 197135206 394270412 689973221 1084243633 1379946442 2168487266 2759892884 4336974532 7589705431 15179410862 30358821724