| Base | Representation |
|---|---|
| bin | 10000101100111… |
| … | …01011100110000 |
| 3 | 100202122002122100 |
| 4 | 20112131130300 |
| 5 | 241331334040 |
| 6 | 21522540400 |
| 7 | 3320606622 |
| oct | 1026353460 |
| 9 | 322562570 |
| 10 | 140105520 |
| 11 | 720a4395 |
| 12 | 3ab07700 |
| 13 | 23046399 |
| 14 | 14870c12 |
| 15 | c477b30 |
| hex | 859d730 |
140105520 has 60 divisors (see below), whose sum is σ = 470523456. Its totient is φ = 37361280.
The previous prime is 140105519. The next prime is 140105521. The reversal of 140105520 is 25501041.
140105520 is a `hidden beast` number, since 1 + 40 + 105 + 520 = 666.
It is an interprime number because it is at equal distance from previous prime (140105519) and next prime (140105521).
It is a tau number, because it is divible by the number of its divisors (60).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 140105493 and 140105502.
It is not an unprimeable number, because it can be changed into a prime (140105521) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96576 + ... + 98015.
Almost surely, 2140105520 is an apocalyptic number.
140105520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
140105520 is an abundant number, since it is smaller than the sum of its proper divisors (330417936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140105520 is a wasteful number, since it uses less digits than its factorization.
140105520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 194610 (or 194601 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 18.
The square root of 140105520 is about 11836.6177601543. The cubic root of 140105520 is about 519.3798326563.
Adding to 140105520 its reverse (25501041), we get a palindrome (165606561).
It can be divided in two parts, 140105 and 520, that added together give a square (140625 = 3752).
The spelling of 140105520 in words is "one hundred forty million, one hundred five thousand, five hundred twenty".
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