Search a number
-
+
30006315644 = 2271257411113
BaseRepresentation
bin11011111100100001…
…000000101001111100
32212110012011202210212
4123330201000221330
5442423104100034
621441255251552
72111404321544
oct337441005174
985405152725
1030006315644
11117a8868078
125995079bb8
132aa2796976
141649210324
15ba94752ce
hex6fc840a7c

30006315644 has 24 divisors (see below), whose sum is σ = 53457975648. Its totient is φ = 14734254080.

The previous prime is 30006315583. The next prime is 30006315671. The reversal of 30006315644 is 44651360003.

It is a self number, because there is not a number n which added to its sum of digits gives 30006315644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132569 + ... + 278544.

It is an arithmetic number, because the mean of its divisors is an integer number (2227415652).

Almost surely, 230006315644 is an apocalyptic number.

It is an amenable number.

30006315644 is a deficient number, since it is larger than the sum of its proper divisors (23451660004).

30006315644 is a wasteful number, since it uses less digits than its factorization.

30006315644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411445 (or 411443 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 30006315644 its reverse (44651360003), we get a palindrome (74657675647).

The spelling of 30006315644 in words is "thirty billion, six million, three hundred fifteen thousand, six hundred forty-four".

Divisors: 1 2 4 71 142 257 284 514 1028 18247 36494 72988 411113 822226 1644452 29189023 58378046 105656041 116756092 211312082 422624164 7501578911 15003157822 30006315644