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30112120033255 = 5132281720303431
BaseRepresentation
bin1101101100011000001100…
…01101111100111111100111
310221121200122102022120202101
412312030012031330333213
512421324110212031010
6144013152244352531
76225346256061511
oct666140615747747
9127550572276671
1030112120033255
11965a529812567
123463b200a5747
1313a5739c1c5b0
14761611d52bb1
1537344309473a
hex1b630637cfe7

30112120033255 has 16 divisors (see below), whose sum is σ = 38915831755584. Its totient is φ = 22235666826240.

The previous prime is 30112120033253. The next prime is 30112120033267. The reversal of 30112120033255 is 55233002121103.

It is not a de Polignac number, because 30112120033255 - 21 = 30112120033253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112120033253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8668611 + ... + 11634820.

It is an arithmetic number, because the mean of its divisors is an integer number (2432239484724).

Almost surely, 230112120033255 is an apocalyptic number.

30112120033255 is a deficient number, since it is larger than the sum of its proper divisors (8803711722329).

30112120033255 is a wasteful number, since it uses less digits than its factorization.

30112120033255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20326266.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 30112120033255 its reverse (55233002121103), we get a palindrome (85345122154358).

The spelling of 30112120033255 in words is "thirty trillion, one hundred twelve billion, one hundred twenty million, thirty-three thousand, two hundred fifty-five".

Divisors: 1 5 13 65 22817 114085 296621 1483105 20303431 101517155 263944603 1319723015 463263385127 2316316925635 6022424006651 30112120033255