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30014442 = 233555823
BaseRepresentation
bin111001001111…
…1101111101010
32002110220002000
41302133233222
530140430232
62551151430
7513055443
oct162375752
962426060
1030014442
1115a40327
12a075576
1362ab733
143db42ca
15297d27c
hex1c9fbea

30014442 has 16 divisors (see below), whose sum is σ = 66698880. Its totient is φ = 10004796.

The previous prime is 30014431. The next prime is 30014443. The reversal of 30014442 is 24441003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30014443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277858 + ... + 277965.

It is an arithmetic number, because the mean of its divisors is an integer number (4168680).

Almost surely, 230014442 is an apocalyptic number.

30014442 is an abundant number, since it is smaller than the sum of its proper divisors (36684438).

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

30014442 is a wasteful number, since it uses less digits than its factorization.

30014442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555834 (or 555828 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 30014442 is about 5478.5437846201. The cubic root of 30014442 is about 310.7731033208.

Adding to 30014442 its reverse (24441003), we get a palindrome (54455445).

The spelling of 30014442 in words is "thirty million, fourteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 555823 1111646 1667469 3334938 5002407 10004814 15007221 30014442