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30045315421 = 113497826339
BaseRepresentation
bin11011111110110101…
…110010000101011101
32212112220120011110001
4123332311302011131
5443013100043141
621445211214301
72112356652532
oct337665620535
985486504401
1030045315421
11118188851a0
1259a6147391
132aaa8a0164
141650482d89
15bacacaa31
hex6fed7215d

30045315421 has 8 divisors (see below), whose sum is σ = 32870628000. Its totient is φ = 27235656240.

The previous prime is 30045315401. The next prime is 30045315427. The reversal of 30045315421 is 12451354003.

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

It is a cyclic number.

It is not a de Polignac number, because 30045315421 - 29 = 30045314909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30045315421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30045315427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3909331 + ... + 3917008.

It is an arithmetic number, because the mean of its divisors is an integer number (4108828500).

Almost surely, 230045315421 is an apocalyptic number.

It is an amenable number.

30045315421 is a deficient number, since it is larger than the sum of its proper divisors (2825312579).

30045315421 is a wasteful number, since it uses less digits than its factorization.

30045315421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7826699.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 30045315421 its reverse (12451354003), we get a palindrome (42496669424).

The spelling of 30045315421 in words is "thirty billion, forty-five million, three hundred fifteen thousand, four hundred twenty-one".

Divisors: 1 11 349 3839 7826339 86089729 2731392311 30045315421