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30223213131 = 333130436267
BaseRepresentation
bin11100001001011100…
…011010001001001011
32220000022022022020010
4130021130122021023
5443344120310011
621515004203003
72116650033666
oct341134321113
986008268203
1030223213131
11118aa2413a1
125a35839463
132b086b9187
141669d506dd
15bbd51b1a6
hex70971a24b

30223213131 has 8 divisors (see below), whose sum is σ = 40419363904. Its totient is φ = 20087935560.

The previous prime is 30223213081. The next prime is 30223213211. The reversal of 30223213131 is 13131232203.

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

It is not a de Polignac number, because 30223213131 - 213 = 30223204939 is a prime.

It is a super-2 number, since 2×302232131312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30223213098 and 30223213107.

It is not an unprimeable number, because it can be changed into a prime (30223213931) 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, 15217141 + ... + 15219126.

It is an arithmetic number, because the mean of its divisors is an integer number (5052420488).

Almost surely, 230223213131 is an apocalyptic number.

30223213131 is a deficient number, since it is larger than the sum of its proper divisors (10196150773).

30223213131 is a wasteful number, since it uses less digits than its factorization.

30223213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30436601.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30223213131 its reverse (13131232203), we get a palindrome (43354445334).

The spelling of 30223213131 in words is "thirty billion, two hundred twenty-three million, two hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 3 331 993 30436267 91308801 10074404377 30223213131