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30145293376 = 2611219732
BaseRepresentation
bin11100000100110011…
…001010110001000000
32212210212200120102021
4130010303022301000
5443214143342001
621503142131224
72115012523462
oct340463126100
985725616367
1030145293376
111186a261100
125a13720b14
132ac5506903
14165d86a132
15bb6778ba1
hex704ccac40

30145293376 has 63 divisors (see below), whose sum is σ = 65785428373. Its totient is φ = 13695461120.

The previous prime is 30145293349. The next prime is 30145293377. The reversal of 30145293376 is 67339254103.

It is a happy number.

The square root of 30145293376 is 173624.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6483470400 + 23661822976 = 80520^2 + 153824^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145293377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15277926 + ... + 15279898.

Almost surely, 230145293376 is an apocalyptic number.

30145293376 is the 173624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30145293376

30145293376 is an abundant number, since it is smaller than the sum of its proper divisors (35640134997).

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

30145293376 is an frugal number, since it uses more digits than its factorization.

30145293376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 30145293376 in words is "thirty billion, one hundred forty-five million, two hundred ninety-three thousand, three hundred seventy-six".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 176 242 352 484 704 968 1936 1973 3872 3946 7744 7892 15784 21703 31568 43406 63136 86812 126272 173624 238733 347248 477466 694496 954932 1388992 1909864 3819728 3892729 7639456 7785458 15278912 15570916 31141832 42820019 62283664 85640038 124567328 171280076 249134656 342560152 471020209 685120304 942040418 1370240608 1884080836 2740481216 3768161672 7536323344 15072646688 30145293376