Search a number
-
+
30111016 = 2313419691
BaseRepresentation
bin111001011011…
…1010100101000
32002122210112211
41302313110220
530202023031
62553214504
7513640135
oct162672450
962583484
1030111016
1115aa6941
12a101434
136313690
143ddb58c
15299bbb1
hex1cb7528

30111016 has 32 divisors (see below), whose sum is σ = 61034400. Its totient is φ = 13844160.

The previous prime is 30110947. The next prime is 30111017. The reversal of 30111016 is 61011103.

It is a happy number.

It is a super-3 number, since 3×301110163 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 30110987 and 30111005.

It is not an unprimeable number, because it can be changed into a prime (30111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43231 + ... + 43921.

It is an arithmetic number, because the mean of its divisors is an integer number (1907325).

Almost surely, 230111016 is an apocalyptic number.

It is an amenable number.

30111016 is an abundant number, since it is smaller than the sum of its proper divisors (30923384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30111016 is a wasteful number, since it uses less digits than its factorization.

30111016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 30111016 is about 5487.3505446618. The cubic root of 30111016 is about 311.1060593662.

Adding to 30111016 its reverse (61011103), we get a palindrome (91122119).

The spelling of 30111016 in words is "thirty million, one hundred eleven thousand, sixteen".

Divisors: 1 2 4 8 13 26 52 104 419 691 838 1382 1676 2764 3352 5447 5528 8983 10894 17966 21788 35932 43576 71864 289529 579058 1158116 2316232 3763877 7527754 15055508 30111016