Base | Representation |
---|---|
bin | 110110110100… |
… | …0111110100101 |
3 | 2000002012222112 |
4 | 1231220332211 |
5 | 24324212131 |
6 | 2504010405 |
7 | 466204403 |
oct | 155507645 |
9 | 60065875 |
10 | 28741541 |
11 | 15250a44 |
12 | 9760a05 |
13 | 5c5423a |
14 | 3b62473 |
15 | 27cb02b |
hex | 1b68fa5 |
28741541 has 2 divisors, whose sum is σ = 28741542. Its totient is φ = 28741540.
The previous prime is 28741511. The next prime is 28741579. The reversal of 28741541 is 14514782.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 27520516 + 1221025 = 5246^2 + 1105^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-28741541 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28741498 and 28741507.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28741511) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14370770 + 14370771.
It is an arithmetic number, because the mean of its divisors is an integer number (14370771).
Almost surely, 228741541 is an apocalyptic number.
It is an amenable number.
28741541 is a deficient number, since it is larger than the sum of its proper divisors (1).
28741541 is an equidigital number, since it uses as much as digits as its factorization.
28741541 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 8960, while the sum is 32.
The square root of 28741541 is about 5361.1137835342. The cubic root of 28741541 is about 306.3162357915.
The spelling of 28741541 in words is "twenty-eight million, seven hundred forty-one thousand, five hundred forty-one".
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