Search a number
-
+
30217458307 = 103929083213
BaseRepresentation
bin11100001001000110…
…011101001010000011
32212222220110221002111
4130021012131022003
5443341132131212
621514241000151
72116550105041
oct341106351203
985886427074
1030217458307
11118a6a70743
125a33923057
132b0745295a
141669293391
15bbcc80ea7
hex70919d283

30217458307 has 4 divisors (see below), whose sum is σ = 30246542560. Its totient is φ = 30188374056.

The previous prime is 30217458283. The next prime is 30217458311. The reversal of 30217458307 is 70385471203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70385471203 = 208733725669.

It is a cyclic number.

It is not a de Polignac number, because 30217458307 - 27 = 30217458179 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 30217458307.

It is not an unprimeable number, because it can be changed into a prime (30217458907) 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, 14540568 + ... + 14542645.

It is an arithmetic number, because the mean of its divisors is an integer number (7561635640).

Almost surely, 230217458307 is an apocalyptic number.

30217458307 is a deficient number, since it is larger than the sum of its proper divisors (29084253).

30217458307 is a wasteful number, since it uses less digits than its factorization.

30217458307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29084252.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 30217458307 in words is "thirty billion, two hundred seventeen million, four hundred fifty-eight thousand, three hundred seven".

Divisors: 1 1039 29083213 30217458307