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30943434 = 2317303367
BaseRepresentation
bin111011000001…
…0100011001010
32011020002102010
41312002203022
530410142214
63023120350
7524005044
oct166024312
964202363
1030943434
1116515295
12a4430b6
136545532
144176a94
152ab3659
hex1d828ca

30943434 has 16 divisors (see below), whose sum is σ = 65527488. Its totient is φ = 9707712.

The previous prime is 30943427. The next prime is 30943463. The reversal of 30943434 is 43434903.

It is a super-2 number, since 2×309434342 = 1914992215424712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

30943434 is a modest number, since divided by 3434 gives 3094 as remainder.

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 in 7 ways as a sum of consecutive naturals, for example, 151582 + ... + 151785.

It is an arithmetic number, because the mean of its divisors is an integer number (4095468).

Almost surely, 230943434 is an apocalyptic number.

30943434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30943434 is an abundant number, since it is smaller than the sum of its proper divisors (34584054).

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

30943434 is a wasteful number, since it uses less digits than its factorization.

30943434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303389.

The product of its (nonzero) digits is 15552, while the sum is 30.

The square root of 30943434 is about 5562.6822666768. The cubic root of 30943434 is about 313.9468786494.

The spelling of 30943434 in words is "thirty million, nine hundred forty-three thousand, four hundred thirty-four".

Divisors: 1 2 3 6 17 34 51 102 303367 606734 910101 1820202 5157239 10314478 15471717 30943434