Base | Representation |
---|---|
bin | 11011111111111… |
… | …01010101111100 |
3 | 121100221122021002 |
4 | 31333331111330 |
5 | 440111321030 |
6 | 35150025432 |
7 | 5551235411 |
oct | 1577752574 |
9 | 540848232 |
10 | 234870140 |
11 | 11063a45a |
12 | 667a8278 |
13 | 39875c1b |
14 | 2329c108 |
15 | 15946245 |
hex | dffd57c |
234870140 has 24 divisors (see below), whose sum is σ = 505258992. Its totient is φ = 91656320.
The previous prime is 234870137. The next prime is 234870143. The reversal of 234870140 is 41078432.
It is an interprime number because it is at equal distance from previous prime (234870137) and next prime (234870143).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (234870143) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142394 + ... + 144033.
It is an arithmetic number, because the mean of its divisors is an integer number (21052458).
Almost surely, 2234870140 is an apocalyptic number.
234870140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
234870140 is an abundant number, since it is smaller than the sum of its proper divisors (270388852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
234870140 is a wasteful number, since it uses less digits than its factorization.
234870140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 286477 (or 286475 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 29.
The square root of 234870140 is about 15325.4735652769. The cubic root of 234870140 is about 616.9868892822.
The spelling of 234870140 in words is "two hundred thirty-four million, eight hundred seventy thousand, one hundred forty".
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