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30220143243 = 365915285859
BaseRepresentation
bin11100001001010000…
…101100101010001011
32220000002112100010120
4130021100230222023
5443342324040433
621514414314323
72116611656613
oct341120545213
986002470116
1030220143243
11118a85349a4
125a347b89a3
132b07b82a84
141669791a43
15bbd1117b3
hex70942ca8b

30220143243 has 8 divisors (see below), whose sum is σ = 40354670400. Its totient is φ = 20116189128.

The previous prime is 30220143223. The next prime is 30220143251. The reversal of 30220143243 is 34234102203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30220143243 - 26 = 30220143179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30220143223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7640953 + ... + 7644906.

It is an arithmetic number, because the mean of its divisors is an integer number (5044333800).

Almost surely, 230220143243 is an apocalyptic number.

30220143243 is a deficient number, since it is larger than the sum of its proper divisors (10134527157).

30220143243 is a wasteful number, since it uses less digits than its factorization.

30220143243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15286521.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30220143243 its reverse (34234102203), we get a palindrome (64454245446).

The spelling of 30220143243 in words is "thirty billion, two hundred twenty million, one hundred forty-three thousand, two hundred forty-three".

Divisors: 1 3 659 1977 15285859 45857577 10073381081 30220143243