Base | Representation |
---|---|
bin | 11101010001011000… |
… | …011010001100110110 |
3 | 10000010102022202011100 |
4 | 131101120122030312 |
5 | 1003332102434332 |
6 | 22234440350530 |
7 | 2161603435401 |
oct | 352130321466 |
9 | 100112282140 |
10 | 31430124342 |
11 | 12369538681 |
12 | 6111a75446 |
13 | 2c6b760316 |
14 | 174235cd38 |
15 | c3e46e67c |
hex | 75161a336 |
31430124342 has 48 divisors (see below), whose sum is σ = 69890221440. Its totient is φ = 10203962496.
The previous prime is 31430124317. The next prime is 31430124347. The reversal of 31430124342 is 24342103413.
31430124342 is a `hidden beast` number, since 3 + 14 + 301 + 2 + 4 + 342 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31430124347) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10459 + ... + 250937.
It is an arithmetic number, because the mean of its divisors is an integer number (1456046280).
Almost surely, 231430124342 is an apocalyptic number.
31430124342 is an abundant number, since it is smaller than the sum of its proper divisors (38460097098).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31430124342 is a wasteful number, since it uses less digits than its factorization.
31430124342 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 240677 (or 240674 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 27.
Adding to 31430124342 its reverse (24342103413), we get a palindrome (55772227755).
The spelling of 31430124342 in words is "thirty-one billion, four hundred thirty million, one hundred twenty-four thousand, three hundred forty-two".
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