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30388048 = 241899253
BaseRepresentation
bin111001111101…
…0111101010000
32010011212120021
41303322331100
530234404143
63003153224
7516202615
oct163727520
963155507
1030388048
1116175a99
12a215814
1363ac7c2
14407050c
152a03ced
hex1cfaf50

30388048 has 10 divisors (see below), whose sum is σ = 58876874. Its totient is φ = 15194016.

The previous prime is 30388021. The next prime is 30388069. The reversal of 30388048 is 84088303.

It is a happy number.

30388048 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 1098304 = 5412^2 + 1048^2 .

It is a super-2 number, since 2×303880482 = 1846866922500608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949611 + ... + 949642.

Almost surely, 230388048 is an apocalyptic number.

It is an amenable number.

30388048 is a deficient number, since it is larger than the sum of its proper divisors (28488826).

30388048 is a wasteful number, since it uses less digits than its factorization.

30388048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899261 (or 1899255 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 30388048 is about 5512.5355327653. The cubic root of 30388048 is about 312.0572434963.

The spelling of 30388048 in words is "thirty million, three hundred eighty-eight thousand, forty-eight".

Divisors: 1 2 4 8 16 1899253 3798506 7597012 15194024 30388048