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30521216341 = 711396379433
BaseRepresentation
bin11100011011001101…
…001100110101010101
32220210002001102210001
4130123031030311111
51000001412410331
622004331331301
72130226026010
oct343315146525
986702042701
1030521216341
1111a42481640
125ab95b0b31
132b55368135
141697764377
15bd9783561
hex71b34cd55

30521216341 has 8 divisors (see below), whose sum is σ = 38052425664. Its totient is φ = 23782765920.

The previous prime is 30521216321. The next prime is 30521216353. The reversal of 30521216341 is 14361212503.

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 30521216341 - 211 = 30521214293 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30521216321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198189640 + ... + 198189793.

It is an arithmetic number, because the mean of its divisors is an integer number (4756553208).

Almost surely, 230521216341 is an apocalyptic number.

It is an amenable number.

30521216341 is a deficient number, since it is larger than the sum of its proper divisors (7531209323).

30521216341 is a wasteful number, since it uses less digits than its factorization.

30521216341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396379451.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 30521216341 its reverse (14361212503), we get a palindrome (44882428844).

The spelling of 30521216341 in words is "thirty billion, five hundred twenty-one million, two hundred sixteen thousand, three hundred forty-one".

Divisors: 1 7 11 77 396379433 2774656031 4360173763 30521216341