Search a number
-
+
7421050161 = 3271091080683
BaseRepresentation
bin1101110100101010…
…00011110100110001
3201011012000102000200
412322111003310301
5110144242101121
63224214505413
7351620612520
oct67225036461
921135012020
107421050161
113168a97908
121531365269
13913607955
145058404b7
152d6789a26
hex1ba543d31

7421050161 has 24 divisors (see below), whose sum is σ = 12363024960. Its totient is φ = 4201691616.

The previous prime is 7421050159. The next prime is 7421050213. The reversal of 7421050161 is 1610501247.

It is a happy number.

It is not a de Polignac number, because 7421050161 - 21 = 7421050159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7421000161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533475 + ... + 547208.

It is an arithmetic number, because the mean of its divisors is an integer number (515126040).

Almost surely, 27421050161 is an apocalyptic number.

It is an amenable number.

7421050161 is a deficient number, since it is larger than the sum of its proper divisors (4941974799).

7421050161 is a wasteful number, since it uses less digits than its factorization.

7421050161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080805 (or 1080802 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 7421050161 is about 86145.5173587111. The cubic root of 7421050161 is about 1950.5411744513.

The spelling of 7421050161 in words is "seven billion, four hundred twenty-one million, fifty thousand, one hundred sixty-one".

Divisors: 1 3 7 9 21 63 109 327 763 981 2289 6867 1080683 3242049 7564781 9726147 22694343 68083029 117794447 353383341 824561129 1060150023 2473683387 7421050161