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30550242 = 235091707
BaseRepresentation
bin111010010001…
…0100011100010
32010111010001110
41310202203202
530310101432
63010444150
7520446522
oct164424342
963433043
1030550242
1116276938
12a293656
136438588
1440b3682
152a36dcc
hex1d228e2

30550242 has 8 divisors (see below), whose sum is σ = 61100496. Its totient is φ = 10183412.

The previous prime is 30550237. The next prime is 30550291. The reversal of 30550242 is 24205503.

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

30550242 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545848 + ... + 2545859.

It is an arithmetic number, because the mean of its divisors is an integer number (7637562).

Almost surely, 230550242 is an apocalyptic number.

30550242 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.

30550242 is a wasteful number, since it uses less digits than its factorization.

30550242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091712.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30550242 is about 5527.2273338447. The cubic root of 30550242 is about 312.6114529390.

Adding to 30550242 its reverse (24205503), we get a palindrome (54755745).

The spelling of 30550242 in words is "thirty million, five hundred fifty thousand, two hundred forty-two".

Divisors: 1 2 3 6 5091707 10183414 15275121 30550242