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30489034 = 2192973379
BaseRepresentation
bin111010001001…
…1100111001010
32010101000002111
41310103213022
530301122114
63005252534
7520103212
oct164234712
963330074
1030489034
1116234954
12a26414a
136416764
144099242
152a23bc4
hex1d139ca

30489034 has 32 divisors (see below), whose sum is σ = 50616000. Its totient is φ = 13716864.

The previous prime is 30489031. The next prime is 30489037. The reversal of 30489034 is 43098403.

It is an interprime number because it is at equal distance from previous prime (30489031) and next prime (30489037).

It is a junction number, because it is equal to n+sod(n) for n = 30488987 and 30489005.

It is not an unprimeable number, because it can be changed into a prime (30489031) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 80257 + ... + 80635.

It is an arithmetic number, because the mean of its divisors is an integer number (1581750).

Almost surely, 230489034 is an apocalyptic number.

30489034 is a deficient number, since it is larger than the sum of its proper divisors (20126966).

30489034 is a wasteful number, since it uses less digits than its factorization.

30489034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 30489034 is about 5521.6876043471. The cubic root of 30489034 is about 312.4025389942.

The spelling of 30489034 in words is "thirty million, four hundred eighty-nine thousand, thirty-four".

Divisors: 1 2 19 29 38 58 73 146 379 551 758 1102 1387 2117 2774 4234 7201 10991 14402 21982 27667 40223 55334 80446 208829 417658 525673 802343 1051346 1604686 15244517 30489034