Base | Representation |
---|---|
bin | 1000011001111101000… |
… | …1010000001110100111 |
3 | 111210201220101221100022 |
4 | 2012133101100032213 |
5 | 4331220420133111 |
6 | 150201134105355 |
7 | 13301341632446 |
oct | 2063721201647 |
9 | 453656357308 |
10 | 144406021031 |
11 | 56273485a38 |
12 | 23ba134b25b |
13 | 1080465272c |
14 | 6dbc872d5d |
15 | 3b529492db |
hex | 219f4503a7 |
144406021031 has 2 divisors, whose sum is σ = 144406021032. Its totient is φ = 144406021030.
The previous prime is 144406021009. The next prime is 144406021103. The reversal of 144406021031 is 130120604441.
It is a happy number.
Together with next prime (144406021103) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 144406021031 - 214 = 144406004647 is a prime.
It is a super-2 number, since 2×1444060210312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (144406021231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72203010515 + 72203010516.
It is an arithmetic number, because the mean of its divisors is an integer number (72203010516).
Almost surely, 2144406021031 is an apocalyptic number.
144406021031 is a deficient number, since it is larger than the sum of its proper divisors (1).
144406021031 is an equidigital number, since it uses as much as digits as its factorization.
144406021031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2304, while the sum is 26.
Adding to 144406021031 its reverse (130120604441), we get a palindrome (274526625472).
The spelling of 144406021031 in words is "one hundred forty-four billion, four hundred six million, twenty-one thousand, thirty-one".
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