Base | Representation |
---|---|
bin | 110000000100011111… |
… | …1010001111000001011 |
3 | 100212110021111102020222 |
4 | 1200020333101320023 |
5 | 3142403341134011 |
6 | 115231225340255 |
7 | 10313064462506 |
oct | 1401077217013 |
9 | 325407442228 |
10 | 103230021131 |
11 | 3a863723856 |
12 | 1800b63768b |
13 | 9971a5ca53 |
14 | 4dd402213d |
15 | 2a42ab7ddb |
hex | 1808fd1e0b |
103230021131 has 4 divisors (see below), whose sum is σ = 103230668592. Its totient is φ = 103229373672.
The previous prime is 103230021107. The next prime is 103230021143. The reversal of 103230021131 is 131120032301.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 131120032301 = 5857 ⋅22386893.
It is a cyclic number.
It is not a de Polignac number, because 103230021131 - 26 = 103230021067 is a prime.
It is a super-2 number, since 2×1032300211312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (103230021151) 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 3 ways as a sum of consecutive naturals, for example, 102410 + ... + 465776.
It is an arithmetic number, because the mean of its divisors is an integer number (25807667148).
Almost surely, 2103230021131 is an apocalyptic number.
103230021131 is a deficient number, since it is larger than the sum of its proper divisors (647461).
103230021131 is an equidigital number, since it uses as much as digits as its factorization.
103230021131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 647460.
The product of its (nonzero) digits is 108, while the sum is 17.
Adding to 103230021131 its reverse (131120032301), we get a palindrome (234350053432).
The spelling of 103230021131 in words is "one hundred three billion, two hundred thirty million, twenty-one thousand, one hundred thirty-one".
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