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30311217364 = 228985143869
BaseRepresentation
bin11100001110101100…
…000111100011010100
32220020102220101100011
4130032230013203110
5444034132423424
621531430330004
72122066045051
oct341654074324
986212811304
1030311217364
111194498a26a
125a5b1b9904
132b209bc89c
1416778dc028
15bc6101694
hex70eb078d4

30311217364 has 12 divisors (see below), whose sum is σ = 53640638100. Its totient is φ = 14985320768.

The previous prime is 30311217329. The next prime is 30311217451. The reversal of 30311217364 is 46371211303.

It can be written as a sum of positive squares in 2 ways, for example, as 12134784964 + 18176432400 = 110158^2 + 134820^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42571579 + ... + 42572290.

It is an arithmetic number, because the mean of its divisors is an integer number (4470053175).

Almost surely, 230311217364 is an apocalyptic number.

It is an amenable number.

30311217364 is a deficient number, since it is larger than the sum of its proper divisors (23329420736).

30311217364 is a wasteful number, since it uses less digits than its factorization.

30311217364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85143962 (or 85143960 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 30311217364 its reverse (46371211303), we get a palindrome (76682428667).

The spelling of 30311217364 in words is "thirty billion, three hundred eleven million, two hundred seventeen thousand, three hundred sixty-four".

Divisors: 1 2 4 89 178 356 85143869 170287738 340575476 7577804341 15155608682 30311217364