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30287423803 = 7131926836529
BaseRepresentation
bin11100001101010001…
…010110100100111011
32220011210010112201011
4130031101112210323
5444012040030203
621525220334351
72121356566060
oct341521264473
986153115634
1030287423803
111193250886a
125a532443b7
132b18aab860
1416746a6c67
15bc3ea176d
hex70d45693b

30287423803 has 32 divisors (see below), whose sum is σ = 39259404800. Its totient is φ = 22690492416.

The previous prime is 30287423791. The next prime is 30287423807. The reversal of 30287423803 is 30832478203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30287423803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30287423807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4635643 + ... + 4642171.

It is an arithmetic number, because the mean of its divisors is an integer number (1226856400).

Almost surely, 230287423803 is an apocalyptic number.

30287423803 is a deficient number, since it is larger than the sum of its proper divisors (8971980997).

30287423803 is a wasteful number, since it uses less digits than its factorization.

30287423803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 30287423803 in words is "thirty billion, two hundred eighty-seven million, four hundred twenty-three thousand, eight hundred three".

Divisors: 1 7 13 19 91 133 247 1729 2683 6529 18781 34879 45703 50977 84877 124051 244153 356839 594139 662701 868357 1612663 4638907 11288641 17517307 122621149 227724991 332828833 1594074937 2329801831 4326774829 30287423803