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30113842 = 2111368811
BaseRepresentation
bin111001011100…
…0000000110010
32002122221102111
41302320000302
530202120332
62553235534
7513651313
oct162700062
962587374
1030113842
1115aa8a80
12a102baa
136314a55
143ddc60a
15299c947
hex1cb8032

30113842 has 8 divisors (see below), whose sum is σ = 49277232. Its totient is φ = 13688100.

The previous prime is 30113827. The next prime is 30113843. The reversal of 30113842 is 24831103.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1368811 = 30113842 / (3 + 0 + 1 + 1 + 3 + 8 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (30113843) 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, 684384 + ... + 684427.

It is an arithmetic number, because the mean of its divisors is an integer number (6159654).

Almost surely, 230113842 is an apocalyptic number.

30113842 is a deficient number, since it is larger than the sum of its proper divisors (19163390).

30113842 is a wasteful number, since it uses less digits than its factorization.

30113842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368824.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30113842 is about 5487.6080399387. The cubic root of 30113842 is about 311.1157917758.

Adding to 30113842 its reverse (24831103), we get a palindrome (54944945).

The spelling of 30113842 in words is "thirty million, one hundred thirteen thousand, eight hundred forty-two".

Divisors: 1 2 11 22 1368811 2737622 15056921 30113842