Base | Representation |
---|---|
bin | 11101000101101100… |
… | …110000010011000100 |
3 | 2222121202112021000212 |
4 | 131011230300103010 |
5 | 1002431414144030 |
6 | 22203155454552 |
7 | 2154003506552 |
oct | 350554602304 |
9 | 88552467025 |
10 | 31234131140 |
11 | 12278942023 |
12 | 60782b7458 |
13 | 2c39c79a04 |
14 | 1724300bd2 |
15 | c2c157595 |
hex | 745b304c4 |
31234131140 has 48 divisors (see below), whose sum is σ = 66662434944. Its totient is φ = 12290476800.
The previous prime is 31234131121. The next prime is 31234131151. The reversal of 31234131140 is 4113143213.
It is a super-3 number, since 3×312341311403 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624875 + ... + 673005.
It is an arithmetic number, because the mean of its divisors is an integer number (1388800728).
Almost surely, 231234131140 is an apocalyptic number.
It is an amenable number.
31234131140 is an abundant number, since it is smaller than the sum of its proper divisors (35428303804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31234131140 is a wasteful number, since it uses less digits than its factorization.
31234131140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48668 (or 48666 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 23.
Adding to 31234131140 its reverse (4113143213), we get a palindrome (35347274353).
The spelling of 31234131140 in words is "thirty-one billion, two hundred thirty-four million, one hundred thirty-one thousand, one hundred forty".
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