Search a number
-
+
30043621345 = 518121331589
BaseRepresentation
bin11011111110101111…
…010100011111100001
32212112210101002121111
4123332233110133201
5443012131340340
621445111023321
72112336365533
oct337657243741
985483332544
1030043621345
1111817928431
1259a566ab41
132aaa42904a
141650161853
15bac893aea
hex6febd47e1

30043621345 has 8 divisors (see below), whose sum is σ = 36054443880. Its totient is φ = 24033498240.

The previous prime is 30043621343. The next prime is 30043621357. The reversal of 30043621345 is 54312634003.

It can be written as a sum of positive squares in 4 ways, for example, as 246992656 + 29796628689 = 15716^2 + 172617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30043621345 - 21 = 30043621343 is a prime.

It is a super-3 number, since 3×300436213453 (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30043621343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75190 + ... + 256399.

It is an arithmetic number, because the mean of its divisors is an integer number (4506805485).

Almost surely, 230043621345 is an apocalyptic number.

It is an amenable number.

30043621345 is a deficient number, since it is larger than the sum of its proper divisors (6010822535).

30043621345 is a wasteful number, since it uses less digits than its factorization.

30043621345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349715.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 30043621345 in words is "thirty billion, forty-three million, six hundred twenty-one thousand, three hundred forty-five".

Divisors: 1 5 18121 90605 331589 1657945 6008724269 30043621345