Search a number
-
+
30420444041 = 13294317310847
BaseRepresentation
bin11100010101001100…
…110010001110001001
32220112001102200011122
4130111030302032021
5444300113202131
621550331405025
72124563336141
oct342514621611
986461380148
1030420444041
11119a0602949
125a8b8b3775
132b3a513c60
141688211921
15bd09c9d7b
hex715332389

30420444041 has 32 divisors (see below), whose sum is σ = 34881960960. Its totient is φ = 26326105344.

The previous prime is 30420444017. The next prime is 30420444049. The reversal of 30420444041 is 14044402403.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-30420444041 is a prime.

It is a super-2 number, since 2×304204440412 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30420444041.

It is not an unprimeable number, because it can be changed into a prime (30420444049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2799080 + ... + 2809926.

It is an arithmetic number, because the mean of its divisors is an integer number (1090061280).

Almost surely, 230420444041 is an apocalyptic number.

It is an amenable number.

30420444041 is a deficient number, since it is larger than the sum of its proper divisors (4461516919).

30420444041 is a wasteful number, since it uses less digits than its factorization.

30420444041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 30420444041 its reverse (14044402403), we get a palindrome (44464846444).

The spelling of 30420444041 in words is "thirty billion, four hundred twenty million, four hundred forty-four thousand, forty-one".

Divisors: 1 13 29 43 173 377 559 1247 2249 5017 7439 10847 16211 65221 96707 141011 215731 314563 466421 1876531 2804503 4089319 6063473 13526209 24394903 54419399 80690833 175840717 707452187 1048980829 2340034157 30420444041