Base | Representation |
---|---|
bin | 11100010111100100… |
… | …100111010110101101 |
3 | 2220121211022210101211 |
4 | 130113210213112231 |
5 | 444340310323141 |
6 | 21554312434421 |
7 | 2125555546144 |
oct | 342744472655 |
9 | 86554283354 |
10 | 30460245421 |
11 | 11a11018251 |
12 | 5aa10a8a11 |
13 | 2b4583b278 |
14 | 168d61275b |
15 | bd423cd81 |
hex | 7179275ad |
30460245421 has 4 divisors (see below), whose sum is σ = 30526034752. Its totient is φ = 30394456092.
The previous prime is 30460245359. The next prime is 30460245427. The reversal of 30460245421 is 12454206403.
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 a cyclic number.
It is not a de Polignac number, because 30460245421 - 29 = 30460244909 is a prime.
It is a super-2 number, since 2×304602454212 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30460245427) 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, 32893971 + ... + 32894896.
It is an arithmetic number, because the mean of its divisors is an integer number (7631508688).
Almost surely, 230460245421 is an apocalyptic number.
It is an amenable number.
30460245421 is a deficient number, since it is larger than the sum of its proper divisors (65789331).
30460245421 is an equidigital number, since it uses as much as digits as its factorization.
30460245421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65789330.
The product of its (nonzero) digits is 23040, while the sum is 31.
The spelling of 30460245421 in words is "thirty billion, four hundred sixty million, two hundred forty-five thousand, four hundred twenty-one".
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