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30143011131 = 323944384913
BaseRepresentation
bin11100000100101010…
…011101100100111011
32212210201101121202200
4130010222131210323
5443213102324011
621503021201243
72114654236632
oct340452354473
985721347680
1030143011131
1111868a42452
125a12a00223
132ac4bb7b7c
14165d434519
15bb6477856
hex704a9d93b

30143011131 has 12 divisors (see below), whose sum is σ = 43541521608. Its totient is φ = 20094594624.

The previous prime is 30143011121. The next prime is 30143011189. The reversal of 30143011131 is 13111034103.

It is not a de Polignac number, because 30143011131 - 223 = 30134622523 is a prime.

It is a super-2 number, since 2×301430111312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30143011121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312531 + ... + 397443.

It is an arithmetic number, because the mean of its divisors is an integer number (3628460134).

Almost surely, 230143011131 is an apocalyptic number.

30143011131 is a deficient number, since it is larger than the sum of its proper divisors (13398510477).

30143011131 is a wasteful number, since it uses less digits than its factorization.

30143011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124362 (or 124359 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30143011131 its reverse (13111034103), we get a palindrome (43254045234).

The spelling of 30143011131 in words is "thirty billion, one hundred forty-three million, eleven thousand, one hundred thirty-one".

Divisors: 1 3 9 39443 84913 118329 254739 354987 764217 3349223459 10047670377 30143011131