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6690030 = 235269829
BaseRepresentation
bin11001100001010011101110
3110120212222220
4121201103232
53203040110
6355220210
7110602314
oct31412356
913525886
106690030
11385a356
1222a7666
1315030c9
14c620b4
158c2370
hex6614ee

6690030 has 32 divisors (see below), whose sum is σ = 16135200. Its totient is φ = 1775232.

The previous prime is 6690029. The next prime is 6690059. The reversal of 6690030 is 300966.

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, 7656 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (504225).

Almost surely, 26690030 is an apocalyptic number.

6690030 is an abundant number, since it is smaller than the sum of its proper divisors (9445170).

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

6690030 is a wasteful number, since it uses less digits than its factorization.

6690030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 6690030 is about 2586.5092306041. The cubic root of 6690030 is about 188.4268068292.

Adding to 6690030 its reverse (300966), we get a palindrome (6990996).

The spelling of 6690030 in words is "six million, six hundred ninety thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 269 538 807 829 1345 1614 1658 2487 2690 4035 4145 4974 8070 8290 12435 24870 223001 446002 669003 1115005 1338006 2230010 3345015 6690030