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30327516881 = 192341681839
BaseRepresentation
bin11100001111101010…
…010010111011010001
32220021120120111001222
4130033222102323101
5444102321020011
621533211534425
72122354432364
oct341752227321
986246514058
1030327516881
1111953102342
125a6475a415
132b241a887c
141679b420db
15bc7770ddb
hex70fa92ed1

30327516881 has 8 divisors (see below), whose sum is σ = 31937385600. Its totient is φ = 28719016560.

The previous prime is 30327516841. The next prime is 30327516883. The reversal of 30327516881 is 18861572303.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30327516881 is a prime.

It is a super-2 number, since 2×303275168812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30327516883) 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, 296441 + ... + 385398.

It is an arithmetic number, because the mean of its divisors is an integer number (3992173200).

Almost surely, 230327516881 is an apocalyptic number.

It is an amenable number.

30327516881 is a deficient number, since it is larger than the sum of its proper divisors (1609868719).

30327516881 is a wasteful number, since it uses less digits than its factorization.

30327516881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684199.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 30327516881 in words is "thirty billion, three hundred twenty-seven million, five hundred sixteen thousand, eight hundred eighty-one".

Divisors: 1 19 2341 44479 681839 12954941 1596185099 30327516881