Base | Representation |
---|---|
bin | 111010001111000… |
… | …1000000100011101 |
3 | 12001011220020202021 |
4 | 1310132020010131 |
5 | 13000214220204 |
6 | 521522100141 |
7 | 66265121455 |
oct | 16436100435 |
9 | 5034806667 |
10 | 1954054429 |
11 | 913016018 |
12 | 4664aa651 |
13 | 251aab532 |
14 | 147738d65 |
15 | b6839154 |
hex | 7478811d |
1954054429 has 2 divisors, whose sum is σ = 1954054430. Its totient is φ = 1954054428.
The previous prime is 1954054393. The next prime is 1954054441. The reversal of 1954054429 is 9244504591.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1834151929 + 119902500 = 42827^2 + 10950^2 .
It is a cyclic number.
It is not a de Polignac number, because 1954054429 - 217 = 1953923357 is a prime.
It is a super-2 number, since 2×19540544292 = 7636657422989032082, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1954054489) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977027214 + 977027215.
It is an arithmetic number, because the mean of its divisors is an integer number (977027215).
Almost surely, 21954054429 is an apocalyptic number.
It is an amenable number.
1954054429 is a deficient number, since it is larger than the sum of its proper divisors (1).
1954054429 is an equidigital number, since it uses as much as digits as its factorization.
1954054429 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 259200, while the sum is 43.
The square root of 1954054429 is about 44204.6878622618. The cubic root of 1954054429 is about 1250.1982467436.
The spelling of 1954054429 in words is "one billion, nine hundred fifty-four million, fifty-four thousand, four hundred twenty-nine".
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