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31041230012 = 22131931418249
BaseRepresentation
bin11100111010001100…
…111001010010111100
32222010022112212102122
4130322030321102330
51002033023330022
622132105142112
72146142046602
oct347214712274
988108485378
1031041230012
1112189a68601
12602378a938
132c09009930
141706849872
15c1a251742
hex73a3394bc

31041230012 has 24 divisors (see below), whose sum is σ = 61579770000. Its totient is φ = 13572683136.

The previous prime is 31041229997. The next prime is 31041230029. The reversal of 31041230012 is 21003214013.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 15708137 + ... + 15710112.

It is an arithmetic number, because the mean of its divisors is an integer number (2565823750).

Almost surely, 231041230012 is an apocalyptic number.

It is an amenable number.

31041230012 is a deficient number, since it is larger than the sum of its proper divisors (30538539988).

31041230012 is a wasteful number, since it uses less digits than its factorization.

31041230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31418285 (or 31418283 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31041230012 its reverse (21003214013), we get a palindrome (52044444025).

The spelling of 31041230012 in words is "thirty-one billion, forty-one million, two hundred thirty thousand, twelve".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 31418249 62836498 125672996 408437237 596946731 816874474 1193893462 1633748948 2387786924 7760307503 15520615006 31041230012