Base | Representation |
---|---|
bin | 10110111000110… |
… | …001001011000111 |
3 | 222202112012212001 |
4 | 112320301023013 |
5 | 1241244331411 |
6 | 102034010131 |
7 | 12341530615 |
oct | 2670611307 |
9 | 882465761 |
10 | 383980231 |
11 | 187824038 |
12 | a8716947 |
13 | 61722a4b |
14 | 38dd46b5 |
15 | 23a9bdc1 |
hex | 16e312c7 |
383980231 has 2 divisors, whose sum is σ = 383980232. Its totient is φ = 383980230.
The previous prime is 383980217. The next prime is 383980273. The reversal of 383980231 is 132089383.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 383980231 - 25 = 383980199 is a prime.
It is a super-2 number, since 2×3839802312 = 294881635597626722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (383980031) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191990115 + 191990116.
It is an arithmetic number, because the mean of its divisors is an integer number (191990116).
Almost surely, 2383980231 is an apocalyptic number.
383980231 is a deficient number, since it is larger than the sum of its proper divisors (1).
383980231 is an equidigital number, since it uses as much as digits as its factorization.
383980231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 31104, while the sum is 37.
The square root of 383980231 is about 19595.4135194948. The cubic root of 383980231 is about 726.8357637740.
The spelling of 383980231 in words is "three hundred eighty-three million, nine hundred eighty thousand, two hundred thirty-one".
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