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8529140 = 2251992143
BaseRepresentation
bin100000100010…
…010011110100
3121001022210002
4200202103310
54140413030
6502450432
7132332204
oct40422364
917038702
108529140
1148a6084
122a33a18
1319c8239
1411c0404
15b37245
hex8224f4

8529140 has 24 divisors (see below), whose sum is σ = 18009600. Its totient is φ = 3392928.

The previous prime is 8529139. The next prime is 8529173. The reversal of 8529140 is 419258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2909 + ... + 5051.

It is an arithmetic number, because the mean of its divisors is an integer number (750400).

Almost surely, 28529140 is an apocalyptic number.

It is an amenable number.

8529140 is an abundant number, since it is smaller than the sum of its proper divisors (9480460).

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

8529140 is a wasteful number, since it uses less digits than its factorization.

8529140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8529140 is about 2920.4691403951. The cubic root of 8529140 is about 204.3157036655.

The spelling of 8529140 in words is "eight million, five hundred twenty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 199 398 796 995 1990 2143 3980 4286 8572 10715 21430 42860 426457 852914 1705828 2132285 4264570 8529140