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30111234 = 235018539
BaseRepresentation
bin111001011011…
…1011000000010
32002122210211220
41302313120002
530202024414
62553215510
7513640566
oct162673002
962583756
1030111234
1115aa701a
12a101596
1363137ca
143ddb6a6
15299bca9
hex1cb7602

30111234 has 8 divisors (see below), whose sum is σ = 60222480. Its totient is φ = 10037076.

The previous prime is 30111217. The next prime is 30111239. The reversal of 30111234 is 43211103.

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

30111234 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30111239) 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, 2509264 + ... + 2509275.

It is an arithmetic number, because the mean of its divisors is an integer number (7527810).

Almost surely, 230111234 is an apocalyptic number.

30111234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30111234 is a wasteful number, since it uses less digits than its factorization.

30111234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018544.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30111234 is about 5487.3704084926. The cubic root of 30111234 is about 311.1068101541.

Adding to 30111234 its reverse (43211103), we get a palindrome (73322337).

The spelling of 30111234 in words is "thirty million, one hundred eleven thousand, two hundred thirty-four".

Divisors: 1 2 3 6 5018539 10037078 15055617 30111234