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30034740 = 2235500579
BaseRepresentation
bin111001010010…
…0101100110100
32002111220220210
41302210230310
530142102430
62551425420
7513201561
oct162445464
962456823
1030034740
1115a545aa
12a085270
1362b7a48
143dbb868
1529842b0
hex1ca4b34

30034740 has 24 divisors (see below), whose sum is σ = 84097440. Its totient is φ = 8009248.

The previous prime is 30034727. The next prime is 30034811. The reversal of 30034740 is 4743003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250230 + ... + 250349.

It is an arithmetic number, because the mean of its divisors is an integer number (3504060).

Almost surely, 230034740 is an apocalyptic number.

30034740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30034740 is an abundant number, since it is smaller than the sum of its proper divisors (54062700).

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

30034740 is a wasteful number, since it uses less digits than its factorization.

30034740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500591 (or 500589 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 30034740 is about 5480.3959710955. The cubic root of 30034740 is about 310.8431435034.

Adding to 30034740 its reverse (4743003), we get a palindrome (34777743).

The spelling of 30034740 in words is "thirty million, thirty-four thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 500579 1001158 1501737 2002316 2502895 3003474 5005790 6006948 7508685 10011580 15017370 30034740