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30011213011 = 1371731572837
BaseRepresentation
bin11011111100110011…
…101100010011010011
32212110112101120201211
4123330303230103103
5442430332304021
621441552240551
72111464046563
oct337463542323
985415346654
1030011213011
111180060258a
125996840157
132aa37bcb10
141649b26da3
15ba9ae13e1
hex6fccec4d3

30011213011 has 32 divisors (see below), whose sum is σ = 33447351168. Its totient is φ = 26757319680.

The previous prime is 30011212969. The next prime is 30011213033. The reversal of 30011213011 is 11031211003.

It is not a de Polignac number, because 30011213011 - 27 = 30011212883 is a prime.

It is a super-2 number, since 2×300112130112 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30011212982 and 30011213000.

It is not an unprimeable number, because it can be changed into a prime (30011213711) 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, 10577085 + ... + 10579921.

It is an arithmetic number, because the mean of its divisors is an integer number (1045229724).

Almost surely, 230011213011 is an apocalyptic number.

30011213011 is a deficient number, since it is larger than the sum of its proper divisors (3436138157).

30011213011 is a wasteful number, since it uses less digits than its factorization.

30011213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30011213011 its reverse (11031211003), we get a palindrome (41042424014).

The spelling of 30011213011 in words is "thirty billion, eleven million, two hundred thirteen thousand, eleven".

Divisors: 1 13 71 73 157 923 949 2041 2837 5183 11147 11461 36881 67379 144911 148993 201427 207101 445409 813731 2618551 2692313 5790317 10578503 14704171 31624039 32514857 191154223 411112507 422693141 2308554847 30011213011