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30061146 = 2331316007
BaseRepresentation
bin111001010101…
…1001001011010
32002120021010210
41302223021122
530143424041
62552151550
7513341553
oct162531132
962507123
1030061146
1115a72425
12a0985b6
1362c6a7b
143dc732a
15298c016
hex1cab25a

30061146 has 16 divisors (see below), whose sum is σ = 60318144. Its totient is φ = 9987744.

The previous prime is 30061121. The next prime is 30061147. The reversal of 30061146 is 64116003.

It is not an unprimeable number, because it can be changed into a prime (30061147) 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 7 ways as a sum of consecutive naturals, for example, 6126 + ... + 9881.

It is an arithmetic number, because the mean of its divisors is an integer number (3769884).

Almost surely, 230061146 is an apocalyptic number.

30061146 is an abundant number, since it is smaller than the sum of its proper divisors (30256998).

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

30061146 is a wasteful number, since it uses less digits than its factorization.

30061146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16325.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30061146 is about 5482.8045743032. The cubic root of 30061146 is about 310.9342127090.

Adding to 30061146 its reverse (64116003), we get a palindrome (94177149).

The spelling of 30061146 in words is "thirty million, sixty-one thousand, one hundred forty-six".

Divisors: 1 2 3 6 313 626 939 1878 16007 32014 48021 96042 5010191 10020382 15030573 30061146