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30060040 = 2352772713
BaseRepresentation
bin111001010101…
…0111000001000
32002120012121211
41302222320020
530143410130
62552142504
7513335413
oct162527010
962505554
1030060040
1115a7160a
12a097a34
1362c640a
143dc6b7a
15298ba2a
hex1caae08

30060040 has 32 divisors (see below), whose sum is σ = 67904280. Its totient is φ = 11976192.

The previous prime is 30059999. The next prime is 30060047. The reversal of 30060040 is 4006003.

30060040 = T11 + T12 + ... + T564.

It can be written as a sum of positive squares in 4 ways, for example, as 27311076 + 2748964 = 5226^2 + 1658^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30060040.

It is not an unprimeable number, because it can be changed into a prime (30060047) by changing a digit.

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, 9724 + ... + 12436.

Almost surely, 230060040 is an apocalyptic number.

It is an amenable number.

30060040 is an abundant number, since it is smaller than the sum of its proper divisors (37844240).

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

30060040 is a wasteful number, since it uses less digits than its factorization.

30060040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001 (or 2997 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30060040 is about 5482.7037125856. The cubic root of 30060040 is about 310.9303993985.

Adding to 30060040 its reverse (4006003), we get a palindrome (34066043).

The spelling of 30060040 in words is "thirty million, sixty thousand, forty", and thus it is an eban number.

Divisors: 1 2 4 5 8 10 20 40 277 554 1108 1385 2216 2713 2770 5426 5540 10852 11080 13565 21704 27130 54260 108520 751501 1503002 3006004 3757505 6012008 7515010 15030020 30060040