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30122144441 = 4310947913417
BaseRepresentation
bin11100000011011010…
…110111001010111001
32212202021010111001022
4130003122313022321
5443142232110231
621500554032225
72114312001044
oct340332671271
985667114038
1030122144441
111185818aa54
125a07a18675
132ac079010c
14165a761c5b
15bb4704c7b
hex7036b72b9

30122144441 has 16 divisors (see below), whose sum is σ = 31172697600. Its totient is φ = 29088678528.

The previous prime is 30122144431. The next prime is 30122144443. The reversal of 30122144441 is 14444122103.

It is a de Polignac number, because none of the positive numbers 2k-30122144441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30122144441.

It is not an unprimeable number, because it can be changed into a prime (30122144443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238365 + ... + 2251781.

It is an arithmetic number, because the mean of its divisors is an integer number (1948293600).

Almost surely, 230122144441 is an apocalyptic number.

It is an amenable number.

30122144441 is a deficient number, since it is larger than the sum of its proper divisors (1050553159).

30122144441 is a wasteful number, since it uses less digits than its factorization.

30122144441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14048.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 30122144441 its reverse (14444122103), we get a palindrome (44566266544).

The spelling of 30122144441 in words is "thirty billion, one hundred twenty-two million, one hundred forty-four thousand, four hundred forty-one".

Divisors: 1 43 109 479 4687 13417 20597 52211 576931 1462453 2245073 6426743 62885479 276349949 700514987 30122144441