Base | Representation |
---|---|
bin | 111010101000… |
… | …1000100000101 |
3 | 2010211210100222 |
4 | 1311101010011 |
5 | 30332200431 |
6 | 3014514125 |
7 | 522202103 |
oct | 165210405 |
9 | 63753328 |
10 | 30740741 |
11 | 16396a79 |
12 | a365945 |
13 | 64a41b5 |
14 | 4122c73 |
15 | 2a7357b |
hex | 1d51105 |
30740741 has 4 divisors (see below), whose sum is σ = 30751872. Its totient is φ = 30729612.
The previous prime is 30740737. The next prime is 30740753. The reversal of 30740741 is 14704703.
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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14704703 = 13 ⋅1131131.
It is a cyclic number.
It is not a de Polignac number, because 30740741 - 22 = 30740737 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30740741.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30740761) 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, 2066 + ... + 8108.
It is an arithmetic number, because the mean of its divisors is an integer number (7687968).
Almost surely, 230740741 is an apocalyptic number.
It is an amenable number.
30740741 is a deficient number, since it is larger than the sum of its proper divisors (11131).
30740741 is an equidigital number, since it uses as much as digits as its factorization.
30740741 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11130.
The product of its (nonzero) digits is 2352, while the sum is 26.
The square root of 30740741 is about 5544.4333344355. The cubic root of 30740741 is about 313.2598800457.
The spelling of 30740741 in words is "thirty million, seven hundred forty thousand, seven hundred forty-one".
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