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30100205505 = 352137793871
BaseRepresentation
bin11100000010000111…
…001010111111000001
32212200201211212111010
4130002013022333001
5443121123034010
621454451511133
72113624345116
oct340207127701
985621755433
1030100205505
11118468659a7
125a005b84a9
132ab907b2b6
14165789090d
15bb281e620
hex7021cafc1

30100205505 has 16 divisors (see below), whose sum is σ = 48163094784. Its totient is φ = 16052520960.

The previous prime is 30100205503. The next prime is 30100205507. The reversal of 30100205505 is 50550200103.

It is an interprime number because it is at equal distance from previous prime (30100205503) and next prime (30100205507).

It is not a de Polignac number, because 30100205505 - 21 = 30100205503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30100205503) 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, 273720 + ... + 367590.

It is an arithmetic number, because the mean of its divisors is an integer number (3010193424).

Almost surely, 230100205505 is an apocalyptic number.

It is an amenable number.

30100205505 is a deficient number, since it is larger than the sum of its proper divisors (18062889279).

30100205505 is a wasteful number, since it uses less digits than its factorization.

30100205505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115256.

The product of its (nonzero) digits is 750, while the sum is 21.

Adding to 30100205505 its reverse (50550200103), we get a palindrome (80650405608).

The spelling of 30100205505 in words is "thirty billion, one hundred million, two hundred five thousand, five hundred five".

Divisors: 1 3 5 15 21377 64131 93871 106885 281613 320655 469355 1408065 2006680367 6020041101 10033401835 30100205505