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30321432103 = 311974965029
BaseRepresentation
bin11100001111010011…
…000101011000100111
32220021011010100022211
4130033103011120213
5444044241311403
621532433304251
72122251630454
oct341723053047
986234110284
1030321432103
111194a7267a6
125a62705087
132b22b58101
141678dda82b
15bc6e6d06d
hex70f4c5627

30321432103 has 8 divisors (see below), whose sum is σ = 31458430080. Its totient is φ = 29194364640.

The previous prime is 30321432073. The next prime is 30321432109. The reversal of 30321432103 is 30123412303.

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-30321432103 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321432109) 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, 2476408 + ... + 2488621.

It is an arithmetic number, because the mean of its divisors is an integer number (3932303760).

Almost surely, 230321432103 is an apocalyptic number.

30321432103 is a deficient number, since it is larger than the sum of its proper divisors (1136997977).

30321432103 is a wasteful number, since it uses less digits than its factorization.

30321432103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965257.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30321432103 its reverse (30123412303), we get a palindrome (60444844406).

The spelling of 30321432103 in words is "thirty billion, three hundred twenty-one million, four hundred thirty-two thousand, one hundred three".

Divisors: 1 31 197 6107 4965029 153915899 978110713 30321432103