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40030231305 = 354165089807
BaseRepresentation
bin100101010001111111…
…001101101100001001
310211022202221110001110
4211101333031230021
51123440214400210
630220054440533
72614662231501
oct452177155411
9124282843043
1040030231305
1115a82027299
127912063149
133a0c4088cc
141d1a5daa01
1510944a9420
hex951fcdb09

40030231305 has 16 divisors (see below), whose sum is σ = 65610526464. Its totient is φ = 20828737920.

The previous prime is 40030231271. The next prime is 40030231357. The reversal of 40030231305 is 50313203004.

It is not a de Polignac number, because 40030231305 - 228 = 39761795849 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32544289 + ... + 32545518.

It is an arithmetic number, because the mean of its divisors is an integer number (4100657904).

Almost surely, 240030231305 is an apocalyptic number.

It is an amenable number.

40030231305 is a deficient number, since it is larger than the sum of its proper divisors (25580295159).

40030231305 is a wasteful number, since it uses less digits than its factorization.

40030231305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65089856.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 40030231305 its reverse (50313203004), we get a palindrome (90343434309).

The spelling of 40030231305 in words is "forty billion, thirty million, two hundred thirty-one thousand, three hundred five".

Divisors: 1 3 5 15 41 123 205 615 65089807 195269421 325449035 976347105 2668682087 8006046261 13343410435 40030231305