Base | Representation |
---|---|
bin | 10111000001001… |
… | …10000101001001 |
3 | 111110100012010012 |
4 | 23200212011021 |
5 | 343413001321 |
6 | 31054401305 |
7 | 4533162104 |
oct | 1340460511 |
9 | 443305105 |
10 | 193093961 |
11 | 99aa6395 |
12 | 54800235 |
13 | 31009aa8 |
14 | 1b90573b |
15 | 11e4305b |
hex | b826149 |
193093961 has 4 divisors (see below), whose sum is σ = 196366800. Its totient is φ = 189821124.
The previous prime is 193093949. The next prime is 193093981. The reversal of 193093961 is 169390391.
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 193093961 - 26 = 193093897 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (193093981) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636331 + ... + 1636448.
It is an arithmetic number, because the mean of its divisors is an integer number (49091700).
Almost surely, 2193093961 is an apocalyptic number.
It is an amenable number.
193093961 is a deficient number, since it is larger than the sum of its proper divisors (3272839).
193093961 is an equidigital number, since it uses as much as digits as its factorization.
193093961 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3272838.
The product of its (nonzero) digits is 39366, while the sum is 41.
The square root of 193093961 is about 13895.8253083435. The cubic root of 193093961 is about 577.9934237348.
The spelling of 193093961 in words is "one hundred ninety-three million, ninety-three thousand, nine hundred sixty-one".
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