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30280048 = 241892503
BaseRepresentation
bin111001110000…
…0100101110000
32002222101102021
41303200211300
530222430143
63001001224
7515243011
oct163404560
962871367
1030280048
1116101937
12a183214
1363725b6
144043008
1529d1ced
hex1ce0970

30280048 has 10 divisors (see below), whose sum is σ = 58667624. Its totient is φ = 15140016.

The previous prime is 30280027. The next prime is 30280051. The reversal of 30280048 is 84008203.

It is a congruent 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 as a sum of consecutive naturals, namely, 946236 + ... + 946267.

Almost surely, 230280048 is an apocalyptic number.

It is an amenable number.

30280048 is a deficient number, since it is larger than the sum of its proper divisors (28387576).

30280048 is a wasteful number, since it uses less digits than its factorization.

30280048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892511 (or 1892505 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 30280048 is about 5502.7309583515. The cubic root of 30280048 is about 311.6871178524.

The spelling of 30280048 in words is "thirty million, two hundred eighty thousand, forty-eight".

Divisors: 1 2 4 8 16 1892503 3785006 7570012 15140024 30280048