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30244272 = 243751839
BaseRepresentation
bin111001101011…
…1110110110000
32002220120100020
41303113312300
530220304042
63000123440
7515033502
oct163276660
962816306
1030244272
1116087a73
12a166580
13635c226
144033d72
1529c63ec
hex1cd7db0

30244272 has 40 divisors (see below), whose sum is σ = 78328320. Its totient is φ = 10056000.

The previous prime is 30244267. The next prime is 30244273. The reversal of 30244272 is 27244203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30244273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35629 + ... + 36467.

It is an arithmetic number, because the mean of its divisors is an integer number (1958208).

Almost surely, 230244272 is an apocalyptic number.

It is an amenable number.

30244272 is an abundant number, since it is smaller than the sum of its proper divisors (48084048).

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

30244272 is a wasteful number, since it uses less digits than its factorization.

30244272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 30244272 is about 5499.4792480743. The cubic root of 30244272 is about 311.5643162766.

Adding to 30244272 its reverse (27244203), we get a palindrome (57488475).

The spelling of 30244272 in words is "thirty million, two hundred forty-four thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 751 839 1502 1678 2253 2517 3004 3356 4506 5034 6008 6712 9012 10068 12016 13424 18024 20136 36048 40272 630089 1260178 1890267 2520356 3780534 5040712 7561068 10081424 15122136 30244272