Base | Representation |
---|---|
bin | 1100110010011… |
… | …11110000010111 |
3 | 21110212110110100 |
4 | 12121033300113 |
5 | 204431001211 |
6 | 14351225143 |
7 | 2441606565 |
oct | 631176027 |
9 | 243773410 |
10 | 107281431 |
11 | 55615144 |
12 | 2bb181b3 |
13 | 192c2b4a |
14 | 10368a35 |
15 | 9642156 |
hex | 664fc17 |
107281431 has 12 divisors (see below), whose sum is σ = 158566408. Its totient is φ = 69857424.
The previous prime is 107281417. The next prime is 107281459. The reversal of 107281431 is 134182701.
It is not a de Polignac number, because 107281431 - 26 = 107281367 is a prime.
It is a super-2 number, since 2×1072814312 = 23018610874815522, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 107281395 and 107281404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (107281481) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138220 + ... + 138993.
Almost surely, 2107281431 is an apocalyptic number.
107281431 is a deficient number, since it is larger than the sum of its proper divisors (51284977).
107281431 is a wasteful number, since it uses less digits than its factorization.
107281431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 277262 (or 277259 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 107281431 is about 10357.6749804191. The cubic root of 107281431 is about 475.1618004656.
The spelling of 107281431 in words is "one hundred seven million, two hundred eighty-one thousand, four hundred thirty-one".
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