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30550430 = 253055043
BaseRepresentation
bin111010010001…
…0100110011110
32010111010022102
41310202212132
530310103210
63010445102
7520450211
oct164424636
963433272
1030550430
1116276a99
12a293792
1364386a1
1440b3778
152a36ea5
hex1d2299e

30550430 has 8 divisors (see below), whose sum is σ = 54990792. Its totient is φ = 12220168.

The previous prime is 30550397. The next prime is 30550433. The reversal of 30550430 is 3405503.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30550433) 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 3 ways as a sum of consecutive naturals, for example, 1527512 + ... + 1527531.

It is an arithmetic number, because the mean of its divisors is an integer number (6873849).

Almost surely, 230550430 is an apocalyptic number.

30550430 is a deficient number, since it is larger than the sum of its proper divisors (24440362).

30550430 is a wasteful number, since it uses less digits than its factorization.

30550430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055050.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 30550430 is about 5527.2443405372. The cubic root of 30550430 is about 312.6120941869.

Adding to 30550430 its reverse (3405503), we get a palindrome (33955933).

The spelling of 30550430 in words is "thirty million, five hundred fifty thousand, four hundred thirty".

Divisors: 1 2 5 10 3055043 6110086 15275215 30550430