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30702145163 = 1719732235839
BaseRepresentation
bin11100100101111111…
…011000111010001011
32221020200111120110112
4130211333120322023
51000334222121123
622034313304535
72134553633204
oct344577307213
987220446415
1030702145163
1112025619098
125b4a10514b
132b839a5a01
1416b37c05ab
15bea5c1d78
hex725fd8e8b

30702145163 has 32 divisors (see below), whose sum is σ = 34849382400. Its totient is φ = 26874602496.

The previous prime is 30702145141. The next prime is 30702145223. The reversal of 30702145163 is 36154120703.

It is a cyclic number.

It is not a de Polignac number, because 30702145163 - 228 = 30433709707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30702144163) 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, 5255198 + ... + 5261036.

It is an arithmetic number, because the mean of its divisors is an integer number (1089043200).

Almost surely, 230702145163 is an apocalyptic number.

30702145163 is a deficient number, since it is larger than the sum of its proper divisors (4147237237).

30702145163 is a wasteful number, since it uses less digits than its factorization.

30702145163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 30702145163 its reverse (36154120703), we get a palindrome (66856265866).

The spelling of 30702145163 in words is "thirty billion, seven hundred two million, one hundred forty-five thousand, one hundred sixty-three".

Divisors: 1 17 19 73 223 323 1241 1387 3791 4237 5839 16279 23579 72029 99263 110941 276743 309301 426247 1302097 1885997 5258117 7246199 8098693 22135649 24739843 95053081 137677781 420577331 1615902377 1806008539 30702145163