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6750030 = 235732143
BaseRepresentation
bin11001101111111101001110
3110200221022010
4121233331032
53212000110
6400402050
7111242250
oct31577516
913627263
106750030
1138a0441
122316326
131524501
14c79cd0
158d5020
hex66ff4e

6750030 has 32 divisors (see below), whose sum is σ = 18514944. Its totient is φ = 1542816.

The previous prime is 6750019. The next prime is 6750053. The reversal of 6750030 is 300576.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6749979 and 6750006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15862 + ... + 16281.

It is an arithmetic number, because the mean of its divisors is an integer number (578592).

Almost surely, 26750030 is an apocalyptic number.

6750030 is an abundant number, since it is smaller than the sum of its proper divisors (11764914).

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

6750030 is a wasteful number, since it uses less digits than its factorization.

6750030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32160.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 6750030 is about 2598.0819848496. The cubic root of 6750030 is about 188.9884374663.

The spelling of 6750030 in words is "six million, seven hundred fifty thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 32143 64286 96429 160715 192858 225001 321430 450002 482145 675003 964290 1125005 1350006 2250010 3375015 6750030