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8238040 = 235205951
BaseRepresentation
bin11111011011001111011000
3120111112110121
4133123033120
54102104130
6452323024
7130010416
oct37331730
916445417
108238040
1147173a8
122913474
1319258a5
1411462b6
15acad7a
hex7db3d8

8238040 has 16 divisors (see below), whose sum is σ = 18535680. Its totient is φ = 3295200.

The previous prime is 8238029. The next prime is 8238053. The reversal of 8238040 is 408328.

It is a junction number, because it is equal to n+sod(n) for n = 8237996 and 8238014.

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, 102936 + ... + 103015.

It is an arithmetic number, because the mean of its divisors is an integer number (1158480).

Almost surely, 28238040 is an apocalyptic number.

It is an amenable number.

8238040 is an abundant number, since it is smaller than the sum of its proper divisors (10297640).

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

8238040 is a wasteful number, since it uses less digits than its factorization.

8238040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205962 (or 205958 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 8238040 is about 2870.1985994004. The cubic root of 8238040 is about 201.9643109187.

The spelling of 8238040 in words is "eight million, two hundred thirty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 205951 411902 823804 1029755 1647608 2059510 4119020 8238040