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30282988 = 227570747
BaseRepresentation
bin111001110000…
…1010011101100
32002222112110011
41303201103230
530223023423
63001023004
7515254411
oct163412354
962875404
1030282988
111610406a
12a184a64
136373a38
144044108
1529d2b0d
hex1ce14ec

30282988 has 6 divisors (see below), whose sum is σ = 52995236. Its totient is φ = 15141492.

The previous prime is 30282971. The next prime is 30283013. The reversal of 30282988 is 88928203.

It is a self number, because there is not a number n which added to its sum of digits gives 30282988.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3785370 + ... + 3785377.

Almost surely, 230282988 is an apocalyptic number.

It is an amenable number.

30282988 is a deficient number, since it is larger than the sum of its proper divisors (22712248).

30282988 is a wasteful number, since it uses less digits than its factorization.

30282988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570751 (or 7570749 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 30282988 is about 5502.9980919495. The cubic root of 30282988 is about 311.6972051380.

The spelling of 30282988 in words is "thirty million, two hundred eighty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7570747 15141494 30282988