Base | Representation |
---|---|
bin | 111010000110… |
… | …1111011010101 |
3 | 2010022211011002 |
4 | 1310031323111 |
5 | 30244400444 |
6 | 3004553045 |
7 | 516645266 |
oct | 164157325 |
9 | 63284132 |
10 | 30465749 |
11 | 16219406 |
12 | a252785 |
13 | 6408c92 |
14 | 409096d |
15 | 2a1bd4e |
hex | 1d0ded5 |
30465749 has 2 divisors, whose sum is σ = 30465750. Its totient is φ = 30465748.
The previous prime is 30465737. The next prime is 30465761. The reversal of 30465749 is 94756403.
It is a balanced prime because it is at equal distance from previous prime (30465737) and next prime (30465761).
It can be written as a sum of positive squares in only one way, i.e., 17556100 + 12909649 = 4190^2 + 3593^2 .
It is a cyclic number.
It is not a de Polignac number, because 30465749 - 24 = 30465733 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30465709) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15232874 + 15232875.
It is an arithmetic number, because the mean of its divisors is an integer number (15232875).
Almost surely, 230465749 is an apocalyptic number.
It is an amenable number.
30465749 is a deficient number, since it is larger than the sum of its proper divisors (1).
30465749 is an equidigital number, since it uses as much as digits as its factorization.
30465749 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 90720, while the sum is 38.
The square root of 30465749 is about 5519.5786976906. The cubic root of 30465749 is about 312.3229896744.
The spelling of 30465749 in words is "thirty million, four hundred sixty-five thousand, seven hundred forty-nine".
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