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30036080 = 245375451
BaseRepresentation
bin111001010010…
…1000001110000
32002111222202102
41302211001300
530142123310
62551435532
7513205514
oct162450160
962458672
1030036080
1115a55608
12a085ba8
1362b8539
143dbc144
1529848a5
hex1ca5070

30036080 has 20 divisors (see below), whose sum is σ = 69834072. Its totient is φ = 12014400.

The previous prime is 30036079. The next prime is 30036101. The reversal of 30036080 is 8063003.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×300360802 = 1804332203532800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187646 + ... + 187805.

Almost surely, 230036080 is an apocalyptic number.

It is an amenable number.

30036080 is an abundant number, since it is smaller than the sum of its proper divisors (39797992).

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

30036080 is a wasteful number, since it uses less digits than its factorization.

30036080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375464 (or 375458 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30036080 is about 5480.5182236719. The cubic root of 30036080 is about 310.8477661905.

Adding to 30036080 its reverse (8063003), we get a palindrome (38099083).

The spelling of 30036080 in words is "thirty million, thirty-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 375451 750902 1501804 1877255 3003608 3754510 6007216 7509020 15018040 30036080