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30440014 = 2111972823
BaseRepresentation
bin111010000011…
…1101001001110
32010021111211221
41310013221032
530243040024
63004233554
7516510253
oct164075116
963244757
1030440014
1116201040
12a23b8ba
1363ca357
14408542a
152a143e4
hex1d07a4e

30440014 has 16 divisors (see below), whose sum is σ = 52433280. Its totient is φ = 13107960.

The previous prime is 30440009. The next prime is 30440021. The reversal of 30440014 is 41004403.

It is a self number, because there is not a number n which added to its sum of digits gives 30440014.

It is a congruent number.

It is an unprimeable number.

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, 35994 + ... + 36829.

It is an arithmetic number, because the mean of its divisors is an integer number (3277080).

Almost surely, 230440014 is an apocalyptic number.

30440014 is a deficient number, since it is larger than the sum of its proper divisors (21993266).

30440014 is a wasteful number, since it uses less digits than its factorization.

30440014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72855.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30440014 is about 5517.2469584024. The cubic root of 30440014 is about 312.2350231695.

Adding to 30440014 its reverse (41004403), we get a palindrome (71444417).

It can be divided in two parts, 30 and 440014, that added together give a palindrome (440044).

The spelling of 30440014 in words is "thirty million, four hundred forty thousand, fourteen".

Divisors: 1 2 11 19 22 38 209 418 72823 145646 801053 1383637 1602106 2767274 15220007 30440014