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30312130110 = 2357114231047
BaseRepresentation
bin11100001110101111…
…100110011000111110
32220020111121202101120
4130032233212120332
5444034401130420
621531502051410
72122106566113
oct341657463076
986214552346
1030312130110
1111945452aa9
125a5b579b66
132b20c4c182
141677a9890a
15bc6231d40
hex70ebe663e

30312130110 has 32 divisors (see below), whose sum is σ = 73773752832. Its totient is φ = 7969385760.

The previous prime is 30312130097. The next prime is 30312130159. The reversal of 30312130110 is 1103121303.

It is a super-2 number, since 2×303121301102 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30312130110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7113394 + ... + 7117653.

It is an arithmetic number, because the mean of its divisors is an integer number (2305429776).

Almost surely, 230312130110 is an apocalyptic number.

30312130110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30312130110 is an abundant number, since it is smaller than the sum of its proper divisors (43461622722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30312130110 is a wasteful number, since it uses less digits than its factorization.

30312130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14231128.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 30312130110 its reverse (1103121303), we get a palindrome (31415251413).

The spelling of 30312130110 in words is "thirty billion, three hundred twelve million, one hundred thirty thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 14231047 28462094 42693141 71155235 85386282 142310470 213465705 426931410 1010404337 2020808674 3031213011 5052021685 6062426022 10104043370 15156065055 30312130110