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30321301031 = 7171921296299
BaseRepresentation
bin11100001111010010…
…100101011000100111
32220021010212200112022
4130033102211120213
5444044223113111
621532430413355
72122250543360
oct341722453047
986233780468
1030321301031
111194a64727a
125a6266125b
132b22b10558
141678da4b67
15bc6e442db
hex70f4a5627

30321301031 has 32 divisors (see below), whose sum is σ = 38646720000. Its totient is φ = 23158904832.

The previous prime is 30321301013. The next prime is 30321301033. The reversal of 30321301031 is 13010312303.

It is not a de Polignac number, because 30321301031 - 214 = 30321284647 is a prime.

It is a super-2 number, since 2×303213010312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321301033) 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, 4810520 + ... + 4816818.

It is an arithmetic number, because the mean of its divisors is an integer number (1207710000).

Almost surely, 230321301031 is an apocalyptic number.

30321301031 is a deficient number, since it is larger than the sum of its proper divisors (8325418969).

30321301031 is a wasteful number, since it uses less digits than its factorization.

30321301031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30321301031 its reverse (13010312303), we get a palindrome (43331613334).

The spelling of 30321301031 in words is "thirty billion, three hundred twenty-one million, three hundred one thousand, thirty-one".

Divisors: 1 7 17 19 119 133 323 2129 2261 6299 14903 36193 40451 44093 107083 119681 253351 283157 687667 749581 837767 2034577 4813669 13410571 14242039 93873997 227979707 254800849 1595857949 1783605943 4331614433 30321301031