Base | Representation |
---|---|
bin | 111101011101110… |
… | …101001010111110 |
3 | 2122212102220210222 |
4 | 331131311022332 |
5 | 4102443331032 |
6 | 250154501342 |
7 | 34361211605 |
oct | 7535651276 |
9 | 2585386728 |
10 | 1031230142 |
11 | 48a114518 |
12 | 249434852 |
13 | 135853067 |
14 | 9ad5aa3c |
15 | 607eea12 |
hex | 3d7752be |
1031230142 has 8 divisors (see below), whose sum is σ = 1547370000. Its totient is φ = 515440144.
The previous prime is 1031230103. The next prime is 1031230147. The reversal of 1031230142 is 2410321301.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 1031230142.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031230147) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79967 + ... + 91962.
It is an arithmetic number, because the mean of its divisors is an integer number (193421250).
Almost surely, 21031230142 is an apocalyptic number.
1031230142 is a deficient number, since it is larger than the sum of its proper divisors (516139858).
1031230142 is a wasteful number, since it uses less digits than its factorization.
1031230142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 174930.
The product of its (nonzero) digits is 144, while the sum is 17.
The square root of 1031230142 is about 32112.7722565337. The cubic root of 1031230142 is about 1010.3035201891.
Adding to 1031230142 its reverse (2410321301), we get a palindrome (3441551443).
The spelling of 1031230142 in words is "one billion, thirty-one million, two hundred thirty thousand, one hundred forty-two".
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