Search a number
-
+
30250221717 = 320533491083
BaseRepresentation
bin11100001011000011…
…011100000010010101
32220002012010111001010
4130023003130002111
5443423024043332
621521411122433
72120425433142
oct341303340225
986065114033
1030250221717
1111913509341
125a428a3419
132b111846a1
14166d7813c9
15bc0aa39cc
hex70b0dc095

30250221717 has 8 divisors (see below), whose sum is σ = 40335675424. Its totient is φ = 20165791248.

The previous prime is 30250221709. The next prime is 30250221761. The reversal of 30250221717 is 71712205203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30250221717 - 23 = 30250221709 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 (30250221217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183943 + ... + 307140.

It is an arithmetic number, because the mean of its divisors is an integer number (5041959428).

Almost surely, 230250221717 is an apocalyptic number.

It is an amenable number.

30250221717 is a deficient number, since it is larger than the sum of its proper divisors (10085453707).

30250221717 is a wasteful number, since it uses less digits than its factorization.

30250221717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511619.

The product of its (nonzero) digits is 5880, while the sum is 30.

The spelling of 30250221717 in words is "thirty billion, two hundred fifty million, two hundred twenty-one thousand, seven hundred seventeen".

Divisors: 1 3 20533 61599 491083 1473249 10083407239 30250221717