Base | Representation |
---|---|
bin | 11100001010110010… |
… | …011000001000101101 |
3 | 2220001212201021000210 |
4 | 130022302120020231 |
5 | 443420402434133 |
6 | 21521131213033 |
7 | 2120342425044 |
oct | 341262301055 |
9 | 86055637023 |
10 | 30245749293 |
11 | 11910a34121 |
12 | 5a412a7179 |
13 | 2b10279a96 |
14 | 166cd3955b |
15 | bc04bd763 |
hex | 70ac9822d |
30245749293 has 4 divisors (see below), whose sum is σ = 40327665728. Its totient is φ = 20163832860.
The previous prime is 30245749249. The next prime is 30245749297. The reversal of 30245749293 is 39294754203.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 30245749293 - 26 = 30245749229 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30245749297) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5040958213 + ... + 5040958218.
It is an arithmetic number, because the mean of its divisors is an integer number (10081916432).
Almost surely, 230245749293 is an apocalyptic number.
It is an amenable number.
30245749293 is a deficient number, since it is larger than the sum of its proper divisors (10081916435).
30245749293 is a wasteful number, since it uses less digits than its factorization.
30245749293 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10081916434.
The product of its (nonzero) digits is 1632960, while the sum is 48.
The spelling of 30245749293 in words is "thirty billion, two hundred forty-five million, seven hundred forty-nine thousand, two hundred ninety-three".
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