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6228009 = 34233343
BaseRepresentation
bin10111110000100000101001
3102201102020000
4113300200221
53043244014
6341253213
7103636314
oct27604051
912642200
106228009
113574217
122104209
1313a0a18
14b8197b
15830509
hex5f0829

6228009 has 20 divisors (see below), whose sum is σ = 9710976. Its totient is φ = 3970296.

The previous prime is 6228007. The next prime is 6228031. The reversal of 6228009 is 9008226.

It is not a de Polignac number, because 6228009 - 21 = 6228007 is a prime.

It is a super-2 number, since 2×62280092 = 77576192208162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6228007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 192 + ... + 3534.

Almost surely, 26228009 is an apocalyptic number.

6228009 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6228009 is a deficient number, since it is larger than the sum of its proper divisors (3482967).

6228009 is a wasteful number, since it uses less digits than its factorization.

6228009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 6228009 is about 2495.5979243460. The cubic root of 6228009 is about 183.9852796195.

The spelling of 6228009 in words is "six million, two hundred twenty-eight thousand, nine".

Divisors: 1 3 9 23 27 69 81 207 621 1863 3343 10029 30087 76889 90261 230667 270783 692001 2076003 6228009